Ep. 10: Okabe menyadari pergeseran garis waktu memengaruhi gender Ruka dan mengejar Suzuha yang hilang.

Okabe realises the D-Mail Faris sent prevented moe culture from being introduced into Akihabara. As Okabe wonders why the relationships between his friends have not been affected, he comes to realize that Ruka's gender had in fact changed to female as a result of his/her D-Mail. Afterwards, Okabe talks with Suzuha, who reveals she came to Tokyo to try and find her father, mentioning she will leave if she is unable to find him the next day. Okabe then establishes her as a lab member and invites her to the lab. As the other lab members prepare a farewell party for Suzuha and an offer to let her send a D-Mail if she fails, Okabe receives a threatening text message telling him that someone is watching him, with a picture of a gelatin treat attached. Later, while shopping with Mayuri, he realizes that his ability to retain memories from previous timelines first occurred when he was a child. That night, Suzuha does not show up and simply sends a farewell text to Okabe. Okabe runs around the city in search of her, failing to notice that the satellite that had crashed in the Akihabara radio building has disappeared. He decides to send a D-Mail to himself telling him to follow Suzuha, shifting to a world line where she ended up attending the party and staying in Tokyo. (Source: Wikipedia)
Episode
- Ep. 6 · Kelompok bereksperimen dengan aturan D-Mail sambil merekrut Moeka sebagai Anggota Lab No. 005
- Ep. 7 · Okabe menguji Phone Microwave dengan mengirimkan nomor lotere ke masa lalu, memicu pergeseran garis dunia.
- Ep. 8 · Okabe menjelaskan pergeseran garis dunia dan Moeka mengirim D-Mail yang mengubah realitas.
- Ep. 9 · Faris mengungkapkan identitas dan sejarah keluarganya mengenai komputer IBN 5100 yang hilang.
- Ep. 10 · Okabe menyadari pergeseran garis waktu memengaruhi gender Ruka dan mengejar Suzuha yang hilang.
- Ep. 11 · Okabe menemukan alat pengangkat TV untuk D-Mail sementara Kurisu mengusulkan lompatan waktu untuk menghindari risiko teori kekacauan.
- Ep. 12 · Kurisu menyelesaikan perangkat time leap sementara Okabe menolak untuk menggunakannya dan Suzuha melarikan diri setelah ancaman bom
- Ep. 13 · Okabe mencoba beberapa lompatan waktu untuk mencegah kematian berulang Mayuri di lab.
- Ep. 14 · Okabe berusaha melarikan diri dari Alpha World Line untuk menyelamatkan Mayuri dari kematian yang tak terelakkan.