PetoPeto-san

The Japanese are now willing to accept youkai into their society after decades of hostility and misunderstanding. In an effort to integrate the two species, conventional schoolchildren start going to classes with quite humanoid paranormal entities. Shingo Ohashi discovers that he is falling in love with Hatoko "Petoko" Fujimura, a half-youkai, half-human girl with three special abilities: uncontrollable cuteness to enchant those around her (similar to a low-power succubus), get stuck to anyone who touches her bare flesh (cured by her dozing off), and the capacity to vanish even at the molecular level (which she can for the most part control).