As a child, Haruka met a boy in a dream. The chained boy, Dean, entrusts Haruka with the "key" and screams "Never come back!". Then time passed... Haruka, who became a high school student, was dreaming of a dream she had never seen. Along with that, something that came to my right hand. While practicing the basketball club, Haruka was returning to the world of his dream at the moment when the sign became painful and he lost consciousness. Far from desperately looking for Dean, it was a mysterious man who sought a "key". And the shocking truth he told !  Note: Cover image to volume 2 is unavailable.

1) Haruka Tsupparu ka 2) Shy ni Jun'ai Joutou! 3) Kimi ga Waraeba

Older sister Misora,is a beauty and younger brother Tairiku is genius with an IQ of 200 , sandwiched between such siblings, high school girl Amano Amia was used to feeling like "a duckling raised by swan" . One day, when I washed a dirty sponge toy that I bought at the open air on my way home from school, the toy became a whale shark....!? It was called Jin-chan and had been cursed into the form of a little shark by a god. I decided to stay in a sea love house. Funny uproar caused by Jin-chan! Fantastic club comedy drawn by Shinobu Hazuki!