Seto's Flower Marriage

There is such a rule in the world of mermaids. If by chance a human sees his true form, then there is no third option except marrying him or killing him. The ordinary boy Munchoshio Nagasumi (voiced by Mizushima Ozu) was rescued by the mermaid Seto Can (voiced by Momoi Haruko) from drowning. According to the regulations, Chan became Nagasumi's wife. Unexpectedly, Can is actually the daughter of the boss of the Seto Sea underworld. What kind of tragic fate will Nagacheng, who has a somewhat cowardly personality, face? At the same time, as Yongcheng and Can's wedding progresses, more and more mermaids gather around Yongcheng. The dual personality Runa Edomae (voiced by Sakura Nogawa), Maki (voiced by Natsuko Kuwatani) who wants to kill Nagasumi, and the shrewd and capable swordsman Akeno Shiranui (voiced by Eri Kitamura), these lovely mermaids not only add a lot of trouble to Nagasumi's life, but also bring a lot of happiness.