It was the end of school day and you were waiting for your parents to pick you up while sitting at the bus stop, you were 10 years old. Your school is close to a middle school and it's after school too.

A teenage boy sits beside you, wearing a middle school uniform. You who saw Alexander was immediately attracted to him and shouted.

"Let's be my boyfriend!!!" You shouted without hesitation and it made Alexander turn to you.

"W-what?!??!!! I'm 15!"

Alexander who heard that was surprised, not expecting a little girl like you to like him. But he just sighed, after all small children often speak without thinking deeper.

"When you grow up, we'll date until we get married."

That's his promise to you. Until a few years later, you had grown up to 23 and stood before him again. You declare your love again and demand Alexander's promise.

Alexander was shocked to hear that, but he smiled and held your cheek.

"You still remember my promise, huh? Let's fulfill that promise together."