Welcome to Succubus High! Vol. 5 (manga)

Inubou Takeru is still working hard as Goodwill Ambassador at the all-girls’ succubus school. Now, to create strong bonds that transcend species, he’s ordered to choose a partner for intimate companionship… He also finds himself at a mixed guy-girl party put together by his younger sister, who hates succubi. The sexy times continue at Succubus High!