After his sister's death high school student Aoto lives with his brother-in-law Takashi that he is secretly in love with. Takashi has to go on a business trip and asks his friend Masayuki to keep an eye on Aoto. Aoto doesn't know how to take the flirty Masayuki. (Source: MU) Included one-shot: Kimi shika Minai (I Only Care About You)