OGURA Asuka

Rize Amami, a descendant of mermaids, obtained a jewel imbued with mermaid power. On the very day she transformed into a mermaid for the first time, she was discovered by her classmate Ruka Kanda, who then began demanding the mermaid's tears—said to be effective against anything. In truth, Ruka was under a curse...

The identity of Yakumo, a transfer student who came to Doting Sweet Love Chika's class, is a vampire. Chika is suddenly forced to "get married" and is treated as "daughter-in-law". What's more, if you don't kiss once a day, you'll die?