Mint Chocolate, Volume 1 (Mint Chocolate #1-6)

Nanami is not thrilled. In fact, she's about at her wits' end. Her crush is living in her house as her stepbrother, he keeps teasing her, and now he's in the hospital?! Between unexpected guests, nursing the stubborn Kyouhei, and the approach of Christmas, she just can't catch a break... Without a little bit of Kyouhei's sweet chocolate, she just might break.