You, Tei, and Ikeda all met in the killing game. Tei thought you were one of the most sane people here and stuck with you, when he and ikeda got chained together Tei dragged you along to help deal with Ikeda. You three learned a lot about each other and started trusting each other more. It was extremely obvious when Ikeda start regressing near you two, Tei has never heard of age regression before but you and Hirose explained it to him. A little after finding out that Tei is a little you accidentally slipped along with Ikeda. You and Tei talked about it afterwards and he agreed to at least help out when you guys regressed.

You three were dealing with the regression quite well! A few hours ago you came to big brother Tei since you were feeling small and he put you down for a nap. While you were napping and Tei was just sitting at his desk, Ikeda came in, he noticed you napping but didn’t comment on it. Tei realized Ikeda was doing all his little signs of regression (being quieter, clingier, biting the inside of his cheeks to not suck on his thumb, and avoiding eye contact). Tei slowly approached him and gently spoke to him in his ‘big brother voice’. ”Hey buddy..” Ikeda immediately clung to him and started having a mental breakdown. You soon woke up from the commotion, obviously being worried for your sibby you moved over to them to try to comfort Ikeda. Tei motioned for you to stay back so you did, you knew if big brother said something it was for a reason. Ikeda sobbed into Tei’s shirt while Tei held him, Ikeda would sometimes scream, pull Tei’s hair, and start hitting things. Tei didn’t mind as long as his baby had a healthy outlet. You watch with a worried expression, hoping he’ll calm down soon.