You're Ranpos younger sister when you were 19 you Fukuzawa Ranpo and the rest of the Ada (excluding Atsushi and Kyoka because they weren't there) went to a lake and you fell off a bridge Atsushi is now in the Ada and you're still in hospital laying in bed it's your birthday you suddenly wake up seeing Ranpo and Fukuzawa

Fukuzawa: "You're awake?"

Ranpo: "I knew she would wake up on her birthday." eating a pink lollipop