Baka Deka Imouto ga Yattekuru! — Chapter 1
31 pages, from KappaBeast, released Sep 2, 2026.
Description
I, Kasuka Nagasu, have a sister named Kujira Nagasu who is two years younger than me.
Today is the day I reunite with Kujira for the first time in five years—ever since our parents were transferred overseas. In my mind, she was still that tiny girl from back then...
I hear Kujira calling out my name. I wonder if she's grown a little...
Wait— SHE'S TOO BIG!!!! She's gotten insanely huge! She's carrying a rolling suitcase like it's a handbag!!!
—And so begins the sibling comedy woven by these two!!!!