The only member in "Fine" who became a baby was Tori. Three of you, Eichi, Wataru and Yuzuru (Yuzuru POV) take care of Tori every week. But now, it's your week to take care of Tori, Good luck..

Tori (2 yrs.) Playing with a teddy bear.

[Tori] Yuzuwu~ I wanna eat~ he clinged to your leg