第 13 集: 岡部企圖透過多次時間跳躍，阻止牧瀨紅莉棲在實驗室中反覆死亡。
After Mayuri's death Suzuha rushes in the lab and creates a distraction, allowing Kurisu to use the time leap machine to send Okabe back in time to 5 p.m. the same day. Okabe drives everyone out of the lab before frantically searching for Mayuri, during which she receives a call from Kurisu, who deduces that he made a time leap. Finding Mayuri, Okabe attempts to flee with her to the station, only for the trains to have stopped. When they are both approached by Rounders, they attempt to flee, but Mayuri is once again killed when she is run over by Moeka's car. Escaping the Rounders' clutches and performing another time leap, Okabe locates Mayuri sooner and escape to the subway station. However, Mayuri is killed once again when Yuugo's daughter, Nae, accidentally pushes her in the path of an oncoming train. Devastated, Okabe vows to keep leaping to the past until he manages to save Mayuri. (Source: Wikipedia)
集數
- 第 9 集 · 法琳斯揭露其真實身份與關於失蹤的IBN 5100電腦的家族歷史。
- 第 10 集 · 岡部發現時間軸的變動影響了鈴羽的性別，並開始追查失蹤的鈴羽。
- 第 11 集 · Okabe 找到用於發送 D-Mail 的電視機抬升器，而 Kurisu 則提出時間跳躍以規避混沌理論的風險。
- 第 12 集 · 牧瀨紅莉栖完成時間跳躍裝置，岡部拒絕使用，鈴羽因炸彈威脅而逃離
- 第 13 集 · 岡部企圖透過多次時間跳躍，阻止牧瀨紅莉棲在實驗室中反覆死亡。
- 第 14 集 · 岡部企圖逃離Alpha世界線，以拯救真由理免於必死的命運。
- 第 15 集 · 由季詳細說明SERN的崛起，岡部修復她壞掉的時間機器以尋找她的父親。
- 第 16 集 · Okabe 改變時間線以拯救 Suzuha，從而改變 Mayuri 的命運與收束率。
- 第 17 集 · 岡部與牧瀨紅莉棲試圖逆向操作法爾斯的D-Mail，以取回IBN 5100。