Umehara Yuuichirou

In a futuristic world where humans and mermaids coexist, Stephan, a mild-mannered office worker at a shipbuilding company, whose life is upended when he is suddenly proposed to by Chao — a princess from the mermaid kingdom. With no time to make sense of what’s happening, Stephan soon finds himself living with the unpredictable, wholehearted Chao. As her sincere love begins to…

* Based on a sport light novel series written by Kabei Yukako and illustrated by Yamakawa Aiji. Haijima Kimichika leaves Tokyo behind and returns to his childhood home where he's reunited with an old friend, Kuroba Yuni. The two become an ace pair on the volleyball court but at the last tournament before graduation a fight causes the duo to split. Now reunited in high school…