Misaki is on a Class-C standby and takes the opportunity to visit a place she remembers. Prim catches up with Misaki looking at her father's tomb, and chooses that time to mention the Gate of Truth. Flashback to the events that led up to the current situation. 2017-7-7: signals received. 2197-2-21: Titan. 2246-3-26: Watcher's Nest. 2258-11-13; Alchemy. 2272-6-18: experiments with monkeys. 2299: Humans designed by genetic engineering; birth of Misaki and Prim. The two return to base after meeting Suzanna, who has no memory of them.