Monster Musume no Iru Nichijou

Years after the existence of non-human species becomes public, Japan begins a cultural exchange program allowing lamias, harpies, centaurs, and other beings to live with human hosts. Through an administrative mistake, Kimihito Kurusu becomes host to Miia, an affectionate lamia who quickly falls for him, even though exchange laws strictly limit intimacy between hosts and guests.

Miia does not remain his only housemate for long. One incident after another brings girls from different species under the same roof, each with her own biology, habits, and feelings. Kimihito struggles to keep everyone safe and follow the rules as the household grows more chaotic, until a change allowing interspecies marriage turns the question from how he will survive each day into whom, if anyone, he will choose.