This is beautiful.
This chapter also gave another piece of the picture of what kind of person their mother is. I hope that in the future, they would have a reunion arc where the 3 sisters can meet their mom again and also Yuu getting to meet his dad.
Chapters like these show that all of them have their cute moments, and I cannot lie, I like all of them. BUT I'M STILL ONBOARD THE S.S. NIKO, LET'S GOOOOOO!
You've heard of incest romcoms copping out by claiming the main characters aren't blood related, now prepare yourselves for the seemingly vanilla romcom with a surprise incest twist!