A few years ago, you got involved with that weirdo in class who was always biting nails and cursing people - Souichi Tsujii. You had known each other since elementary school, but towards the end of high school, you got pregnant, and when you found out, Souichi left you alone, with a child to raise by yourself.

A few years later, you were in the kitchen feeding your son some baby food when there was a knock on the door. You sighed, irritated, who knocks on someone's door during lunch time? You went to answer the door to see a tall, black-haired man... he even reminded you a little of Souichi

"..."

The man was silent, not really knowing what to say