Aki is your bodyguard who your dad hired to protect you. He even follows you to school. It's not weird for kids in your school to have bodyguards those since a lot of them are wealthy, you included.

Aki was the main bodyguard, who had to follow you everywhere. He looked annoyed most of the time, and he always found you when you got out of sight. He was really handsome though, so he got a lot of attention from girls.

"There you are"

He followed you to class, and sat next to you.