As Kurisu offers to look after Mayuri at a doujin convention, Rintar? heads to Moeka's address, only to learn that she committed suicide. Rintar? time leaps to before Moeka killed herself, finding her a nervous wreck due to not having been contacted by a person she calls '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. Rintar? confronts Moeka about FB and tells her about her future suicide. Rintar? finds the offending text, which involved the location of the IBN 5100, but annuling it via another D-Mail still doesn't change the timeline. As Rintar? decides he needs to send a D-Mail from FB's phone, Moeka tells him the location of the IBN 5100.