Rintar? discovers that a television in the electronics shop below the lab is the key to the time slot in which D-Mails can be sent. Kurisu then theorizes that it might be possible to send memories back in time in the same manner as D-Mails, allowing the consciousness of a person to 'leap' to the past. As Rintar? goes into town with Mayuri to look for parts Kurisu needs, running into Moeka along the way, Suzuha tells Rintar? that Kurisu works for SERN, though Kurisu denies this when asked. Kurisu tells Rintar? about the troubles she has with her father, who grew to hate her when she surpassed him in scientific prowess. Rintar? receives another sinister text message warning him that he knows too much, later learning that the lab is connected to the SERN network without the lab members' knowing.