第 4 集: 岡部與牧瀨紅莉棲尋找IBN 5100以解密SERN的時間旅行數據。
With further information about SERN's time travel experiments encrypted in a code that Daru can't decipher, Okabe learns from Titor that he needs the IBN 5100 computer Moeka was looking for in order to decode it. While doing his laundry, Okabe runs into Kurisu, who is still in denial about a time machine existing and tells her about the IBN 5100. She later becomes intrigued after a contact of hers confirms Okabe's story about the IBN's capabilities. Later, Mayuri's maid cafe co-worker and owner, Faris Nyannyan, informs Okabe that an IBN 5100 had been donated to Ruka's family shrine. Ruka's father tells Okabe that the person who donated the PC said that someday a young man would come looking for it, allowing Okabe and Kurisu to have it. (Source: Wikipedia)
集數
- 第 1 集 · Okabe 參加研討會，目睹謀殺案，並經歷涉及墜毀衛星的時間線變動。
- 第 2 集 · Okabe 在調查 John Titor 再現與 IBN 5100 時，遇見了活著的 Kurisu 並會面 Suzuha。
- 第 3 集 · 岡部在實驗室爆炸與簡訊重導事件後，發現微波爐竟是時光機。
- 第 4 集 · 岡部與牧瀨紅莉棲尋找IBN 5100以解密SERN的時間旅行數據。
- 第 5 集 · 岡部與牧瀨紅莉棲帶著IBN 5100回歸，而椎名真由理則警告岡部關於紅莉棲的事。
- 第 6 集 · 團隊在招募牧瀨紅莉棲為Lab Member No. 005的同時，嘗試實驗D-Mail的規則
- 第 7 集 · 岡部利用電話微波爐將樂透號碼傳回過去，引發世界線變動。
- 第 8 集 · Okabe 解釋世界線變動，Moeka 發送 D-Mail 改變現實。