Neko-kan: Neko ni Koisuru Otoko no Monogatari

Synopsis

Wataru Kasai is a somewhat average high school boy in the Track Club, until he meets a small cat that he eventually takes home and names Tora. Well, Tora has other plans, he turns human, and now Wataru isn't somewhat average he's just weird, and what of his Club President and his cat. (Source: MU) Included one-shot: Issho ni Ite ne