Divide by Zero is a masterclass in how to create a branching narrative point. It takes everything you loved about the original ending, smashes it, and then asks: “What would you do if hope was a lie?” It’s short, brutal, and absolutely necessary for the full Steins;Gate experience.
It depicts an alternate version of the original episode 23 where Rintaro Okabe fails to save Kurisu Makise and, crucially, Establishment of the Beta World Line: Steins-Gate- Kyoukaimenjou no Missing Link - Di...
Okabe stared at the phone in his hand. Not the microwave. Not the Future Gadget #8. Just a normal smartphone. On its screen: a single unsent message. Divide by Zero is a masterclass in how
The episode opens with Okabe returning from July 28 (the day Kurisu dies) after his first, failed attempt to save her. He is emotionally shattered. The lab is quiet. Mayuri tries to comfort him, but Okabe is catatonic. Not the microwave
After failing to save Kurisu Makise on his first attempt, Okabe Rintaro returns to the present to find Akihabara drastically changed. World War III has begun due to the conflict over Kurisu’s time travel theory. Suzuha Amane explains that without Kurisu’s help, the "Operation Skuld" plan never existed. A crushed, traumatized Okabe gives up on saving her. The episode ends with a haunting glimpse of a future where Okabe becomes the creator of the time machine—setting the stage for Steins;Gate 0 .
: Instead of Mayuri slapping sense into Okabe, she stops Suzuha Amane from doing so, choosing to comfort the traumatized Okabe instead.
It explains the change in Mayuri Shiina’s behavior, showing her protecting Okabe from Suzuha's slap and telling him it's okay not to change the future. Viewer Guide: