• Air date: 05 Apr '11 24 episodes
      A group of friends have customized their microwave so that it can send text messages to the past. As they perform different experiments, an organization named SERN who has been doing their own research on time travel tracks them down and now the characters have to find a way to avoid being captured by them.
  • List of Episodes (24)
    • 1. Prologue of the Beginning and Ending

      05 Apr '11
      Self-proclaimed mad scientist, Rintar? Okabe, goes to a seminar on time travel with his friend, Mayuri Shiina. Whilst there, he meets a girl named Kurisu Makise who explicitly states that he had met her 15 minutes ago, despite having never met her before. Later on, Rintar? hears a scream and discovers Kurisu had been stabbed. As he sends a text to another one of his research buddies, Hashida Itaru, Rintar? experiences a strange experience and finds the street he is on has suddenly become deserte
    • 2. Paranoia of Time Leaps

      12 Apr '11
      Rintar? is surprised that Kurisu is alive, before being humiliated by her during a lecture concerning time travel. After getting some provisions from crossdresser Ruka Urushibara and meeting Suzuha Amane, who gets hired to work part time in the electronic's shop below his apartment, Rintar? investigates the supposedly altered events and learns of a man calling himself John Titor who claims to be a time traveller. Rintar? then discovers the books he had on John Titor had disappeared as if they ne
    • 3. Paranoia of Parallel Process

      19 Apr '11
      Rintar? agrees to let Kurisu look at the mobile microwave on the condition she become a lab member. They discover that Hashida was using the microwave at the time Rintar? sent his text about Kurisu's stabbing. Despite the microwave causing a large electrical discharge when Mayuri opens it in the middle of operating, Rintar? concludes that the mobile microwave is, in fact, a time machine. After hearing about the large hadron collider and micro-black-holes, Rintar? asks Hashida to hack into CERN's
    • 4. Rendezvous of Abstract Fluctuation

      26 Apr '11
      With further information encrypted in a code that Hashida can't decifer, Rintar? learns from John Titor that he needs the IBN 5100 computer Moeka was looking for to decode it. Whilst doing his laundry, Rintar? runs into Kurisu, who is still in denial about a time machine existing. After Mayuri hears from her co-worker, Feiris Nyannyan, that she knows about the IBN-5100, Rintar? plays a game before learning that the computer is at the shrine where Ruka works. After getting permission to borrow it
    • 5. Rendezvous of Electrical Charge Conflict

      03 May '11
      As Rintar? and Kurisu arrive home with the IBN 5100, Suzuha seems to be shocked when she sees Kurisu. As Rintar? gathers some needed parts, he runs into Suzuha again, who warns her to be cautious of Kurisu and acts strangely when a helicopter passes by. After Hashida gets the IBN 5100 working, he, Rintar? and Kurisu begin deciphering SERN's reports. They discover that they had indeed been experimenting with time travel, with their attempts of sending humans back in time resulting in the same jel
    • 6. Butterfly Effect`s Divergence

      10 May '11
      The lab members discuss how to perfect the Mobile Microwave, dubbing messages sent to the past as 'D-Mails'. Further experimenting reveals the various rules concerning D-Mails; being that it can only be sent during a certain time of the day, long messages are split into several smaller mails, and the timer on the microwave determines how far back the message is sent. The next day, Moeka comes round to see the IBN 5100 and, after hearing about the time experiments, is made a lab member.
    • 7. Divergence Singularity

      17 May '11
      After some improvements are made to the Mobile Microwave, Rintar? decides to experiment changing the past by sending winning lottery numbers to the past. After sending the text, the past is changed to where Ruka has bought a lottery ticket, but Rintar? didn't perform the experiment, with only Rintar? retaining the memory of what had happened, realising time has been put onto a new timeline. Confused as to why only he can remember the previous timeline, Rintar? contacts John Titor, who tells him
    • 8. Homeostasis of Dreams

      24 May '11
      As Rintar? decides to resume his experiments, Moeka requests to send a D-Mail. As she sends the D-Mail, Rintar? is shifted onto a new timeline where Moeka never came to the lab. The next day, Ruka comes to the lab, asking to send a D-Mail to the past so that he would be born as a girl. They send a D-Mail to Ruka's mother's pager from before he was born, letting her know of an urban legend about how mothers-to-be can affect their baby's gender by eating certain foods. Rintar? moves to a new world
    • 9. Homeostasis of Illusions

      31 May '11
      Maid café waitress Rumiho Akiha, a.k.a. Feyris Nyan Nyan, learns about the Mobile Microwave as Rintar? discusses it with Hashida, becoming very interested in it. Later, Rintar? discovers that the IBN-5100 has gone missing, as if they never found it in the first place, most likely as a result of Moeka's D-Mail. After learning that the IBN-5100 had been previously taken from Ruka's shrine, Rintar? finds Moeka in town, but she doesn't know where the IBN-5100 is either. Rintar? also finds out that R
    • 10. Homeostasis of Complements

      07 Jun '11
      Rintar? realises the D-Mail Rumiho sent prevented moe culture from being introduced into Akihabara. As Rintar? wonders why the relationships between his friends hasn't been affected, he comes to realise that Ruka's gender had in fact been changed. Afterwards, Rintar? talks with Suzuha, who revealed she came to Tokyo to try and find her estranged father, mentioning she will leave if she is unable to find him the next day. As Rintar? contemplates holding a party for her, offering the chance to sen
    • 11. Dogma of Space-Time Boundary

      14 Jun '11
      Rintar? discovers that a television in the electronics shop below the lab is the key to the time slot in which D-Mails can be sent. Kurisu then theorises that it might be possible to send memories back in time in the same manner as D-Mails, effectively allowing people to 'leap' to the past. As Rintar? goes into town with Mayuri to look for parts Kurisu needs, running into Moeka along the way, Suzuha tells Rintar? that Kurisu works for SERN, though Kurisu denies this when asked. Kurisu tells Rint
    • 12. Dogma in Ergosphere

      21 Jun '11
      With the ability to utilise the LHC, Kurisu completes her 'time leap machine'. However, Rintar?, still tortured by the texts he has received, decides against performing an experiment, instead suggesting they announce it to the public. As the lab members decide to have a party, Kurisu comes into conflict with Suzuha, who claims she is destined to become a SERN spy, but Mayuri manages to calm things down. As a bomb threat is televised, Suzuha, after hearing about the lab's connection to SERN, susp
    • 13. Necrosis of Metaphysical

      28 Jun '11
      Right after Moeka kills Mayuri, Suzuha rushes in the lab and creates a distraction, allowing Kurisu to use the time leap machine to send Rintar? back in time to 5 p.m. of the same day. Rintar? drives everyone away from the lab, but wastes most of his time searching for Mayuri. By the time they try to escape the area, the bomb threat has stopped the subway and Mayuri is killed when Moeka runs her over with a car. Rintar? manages to escape the clutches of SERN and leaps to the past again. Using hi
    • 14. Necrosis of Physical

      05 Jul '11
      Rintar? makes several time leaps, but no matter what, Mayuri always ends up dying in some way. In one of those leaps, Rintar? calls out Moeka and holds her at gunpoint, making her reveal that SERN have targeted the lab due to the creation of the time machine and their plan to publicly announce it. As Rintar? falls further into despair, Kurisu gets him to reveal what he knows and offers to help him try to save Mayuri. She sends Rintar? to just before she completed the time leap machine, where he
    • 15. Missing Link Necrosis

      12 Jul '11
      Suzuha explains how SERN was able to build a time machine and use it to rule the world in 2036. She explains she plans to travel to 1975 to acquire an IBN-5100, but soon discovers her time machine has broken down as a result of the storm on the night Rintar? stopped her from leaving. Rintar? leaps two days before the completion of the time leap machine in order to get Hashida to help fix Suzuha's time machine, whilst Mayuri suggests they also help find Suzuha's father, using his badge as a clue.
    • 16. Sacrificial Necrosis

      19 Jul '11
      Unable to get much information about the badge maker's client, Rintar? decides to leap back in time to confront the client in question, only to find it was Hashida, who wanted to make a fake badge to cheer Suzuha up. Hashida then mentions that Suzuha's time machine is only able to travel backwards in time. As the repairs to the time machine are completed, Mayuri deduces from the time machine's naming convention that Suzuha's father is actually Hashida. After a short reunion, Suzuha travels back
    • 17. Made in Complex

      26 Jul '11
      Despite the change in divergence, Mayuri's death still takes place, albeit a day later than in previous timelines. Rintar? asks for Kurisu's help, who theorises that, since negating Rintar?'s D-Mail about Suzuha delayed the attack, undoing the effects of the other D-Mails could bring them back to a World Line where they have an IBN-5100, letting them hack into SERN and delete the records that set them on Rintar?'s trail. Rintar? starts by trying to figure out how to reverse Rumiho's D-Mail, whil
    • 18. Androgynous Fractale

      02 Aug '11
      Rintar? tells Ruka about how she used to be a man and urges her to reverse the D-Mail responsible in order to change Mayuri's fate. While she initially disbelieves him, ultimately she agrees, on the condition that Rintar? takes her on a date. Despite Kurisu and Hashida's advice on dating, Rukako and Rintar? spend the evening in awkward conversation. Like Rumiho, Ruka eventually recalls the previous timeline, which makes her even more depressed at the impending return to it, since she feels she w
    • 19. Infinite Chain of Apoptosis

      09 Aug '11
      As Kurisu offers to look after Mayuri at a doujin convention, Rintar? heads to Moeka's address, only to learn that she had killed herself. After finding out the deadline of Mayuri's death in this world line, Rintar? time leaps to before Moeka killed herself, finding her in a nervous wreck having not been contacted by someone known as 'FB'. Rintar? steals Moeka's phone and sends a D-Mail from it, but the timeline doesn't shift, leading him to realise that another message was sent from her phone.
    • 20. Finalize Apoptosis

      16 Aug '11
      Despite Rintar? knowing the location of the IBN-5100, Kurisu is against him trying to steal it, as it most likely won't affect the world line. Instead, she suggests to Rintar? that he stake out the location in order to find FB, with Moeka deciding to join him. As they observe the IBN-5100 being taking out, they follow it as it is passed along to several people, including Mr. Braun, before it ends up on a plane towards France. Rintar?, Moeka and Kurisu go to confront Mr. Braun, who reveals himsel
    • 21. Paradox Meltdown

      23 Aug '11
      Not wanting to move to a World Line where Kurisu dies, Rintar? decides against the hacking. As he accompanies Mayuri to a Comic Market, he tries to think of a way he can save her without changing World Lines, too afraid to tell Kurisu the reason behind his change of plans. As a car appears during Mayuri's fated time to die, Rintar? attempts to change her destiny by letting the car hit him instead, but Mayuri ends up dying trying to save him. After he leaps back in time, Kurisu has Rintar? reveal
    • 22. Being Meltdown

      30 Aug '11
      As Rintar? and Kurisu hide out from the rain, she explains how she recalls her stabbing from dreams, as well as Rintar?'s various attempts at saving Mayuri. When Kurisu tells Rintar? that he should save Mayuri over her, he can't accept it and runs off. As Rintar? attempts to time leap again, Kurisu stops him, worried that seeing Mayuri die over and over will destroy him. After giving in and choosing to go save Mayuri, Rintar? tells Kurisu he loves her, to which she responds by kissing him. The n
    • 23. Open the Steins Gate

      06 Sep '11
      Suzuha explains that her mission is to prevent Kurisu's death and enter a World Line known as 'Stein's Gate' so that World War III will never happen. With a small chance of saving Kurisu, Rintaro agrees to go with Suzuha to just before Kurisu's death. As Rintaro waits in the place where Kurisu's stabbing takes place, he sees Kurisu's father, the Professor Nakamachi he saw that day, attack Kurisu as he tries to steal her time travel theory. As Rintaro attempts to save Kurisu, he inadvertently sta
    • 24. Achievement Point

      13 Sep '11
      Picking up a sabre toy in order to use its liquid as a substitute for Kurisu's blood, Rintaro and Suzuha return to the day of Kurisu's death. First, he makes sure to obtain a metal toy Mayuri previously found in order to prevent Nakabachi to successfully bring Kurisu's theory to Russia. As he prepares to fake Kurisu's death, Rintaro finds the liquid in the sabre had dried up. To this end, he allows himself to be stabbed by Nakabachi, before knocking out Kurisu with a taser and using his own bloo