My Bride is a Mermaid

Nagasumi has to tell Sun that it's time for him to return home; while he tries to find the right moment, Sun's tiny bodyguard, Maki the Conch, looks for her own perfect moment to assassinate Nagasumi.

Mawari thinks there's something strange about Sun, so she starts investigating. When all signs point to a dangerous situation, Sun might have to reveal her secret in order to protect her friends.

When Nagasumi discovers the secret mermaid identity of a famous pop star named Luna, the little diva demands he become her personal slave; her plans for childhood rival Sun are even more drastic.

After drinking a diet supplement meant only for mermaids, Nagasumi grows into a giant and goes on a naked rampage of destruction across the city.

Luna requests some one-on-one tutoring from Nagasumi, but no amount of studying can prepare him for the consequences when he's caught in a compromising position with his pop idol pupil.

With her glasses broken and vision blurry, the class president tells a helpful boy about her crush on a friend; she soon realizes this helpful boy is the same boy she likes - Nagasumi.