My name is Keisuke and I work as a nursery teacher at a nursery school in the city. There is a mischievous boy named Ryusei in the Kirin group for the first year of kindergarten. Ryusei's guardian is a single mother named Sumire. As a single man, I am seriously in love with Sumire, who has a former delinquent vibe and a headstrong personality, but is also beautiful and kind. I have been giving a little bit of my monthly salary, but out of my own unilateral feelings, to financially support Sumire's single-mother household.