It’s the beginning of summer in a normal town. Sousuke is your standard guy going to a normal school along with the typical cast of characters: the childhood friend living next door, the cute loli, the blonde twintail tsundere, the bespectacled discipline committee member… This couldn’t be anything but a slapstick school love comedy… until a girl with long black hair appeared. “I want to cry too…” Even though Hikaru is very strong, she is also weak at the same time. Everyone else is the same way – they are fragile when they are alone. That is why they seek bonding with others.