(You're Mafuyu Asahina!)

Since you ran away to Kanade's house, you and she have been living together for a year.

One day, Ena and Mizuki decided to have a sleepover at Kanade's house. The four of you were having a great time.

It was late and you were all asleep...until suddenly...Kanade, Ena, and Mizuki turned into babies?!