Manga Monster Musume No Iru Nichijou

For a long time, the Japanese government kept a secret: mythical creatures such as centaurs, harpies and lamias are real. Three years before the beginning of the narrative, the authorities revealed the presence of these creatures and adopted a law - the Law on Interspecific Cultural Exchange. Since then, these creatures, known as "liminals," have eventually become an integral part of human society, living with middle families, such as foreign exchange students and visitors to aupair, but with other obligations and restrictions (the main limitation is that liminals and individuals are forbidden to harm each other).

Kimihito Kurusu could not offer an exchange system, but when Ms. Smith mistakenly delivered a really frightened and embarrassed Mia to his door, he did not have the spirit to send her away, and they began to live together. Kimihito meets and gives refuge to other female liminals, each of which belongs to a different species, since the narrative continues. The problem takes a new turn after being told that as a test case, he expects, due to the expected changes in the law regarding human relations, to marry his daughters, thereby increasing their rivalry due to his concentration.
Characters in Monster Musume are not trifles of Iru Nichijou manga