[Machine Translation] One day, on his way home from school, Korin Kan'ya is summoned to the head family. In fact, there is a long-standing tradition in the Kan'ya family that after reaching the age of 18, a beast with power is given to the child. If he cannot control the beast and form a bond with it, he will be the first member of the Kan'ya family to fail. However, Kuroyoh, the beast given to him, does not obey Yukimichi at all, perhaps because of its enormous power.... With the help and interference of others, Kourin tries to start with skinship...?