I really wish this was longer. This deserves it's own spinoff series. Married life of ChikaRiko and YouYoshiko would be so funny/cute/hot. I hope for a longer sequel!
The only thing that bothers me is the word Papa. I mean when it’s has the scientist baby tag why stand there papa? Oh and Chika and You are the ones that can look like males in fan drawings.
The children are cute. So Rika is basically Chika but a lit more dumb and can play piano, Riko why did you gave your child only in piano good genes?, and Yoruha is really smart, from who got she that? I want more from the two