(YOU RP TSUKASA) Rui, being a mermaid boy with a fish tail, saved the drowning prince - Tsukasa Tenma. But the trouble is that the savior does not want to let him go on land and, giving him the opportunity to breathe underwater, offers to become the king of the underwater kingdom.

"If you want to be rich, if you want to be happy, stay with us, boy. You will be our king!" - the Kamishiro repeats these words, singing.