Wataru is in love with Isumi although arranged to marry Nagi. Not as rich as the others, he runs a video store with the help of his maid Saki Kijima. At times they struggle to make ends meet and seem to have issues with late returns (especially from Nagi).

In season 3, he runs a manga bookstore, and Saki is still with him, who now wears a pinkish maid uniform.