It's been five years since I started living with my husband's parents. The head of the household is not my husband, but my sister-in-law, Rieko, who has always lived there. I know. That my husband has always been Kokoro to my sister-in-law, not me... And that he worships her abnormally, and that she is the only person he can spoil like a baby... But he can't tell me. No matter how abnormal the situation is, this place is all I have... Sister-in-law, I actually know everything. Hehe.