Peniel was a english tutor and Sungjae was the student.

Peniel preferred to work at home rather than working at a school. He couldn't the stress and noise that kids gave him. If they wanted to learn english, they would have to come to him alone. 

Sungjae was a troublemaker. He thought that english was a stupid language and why should he learn it? He would never leave Korea anyways. That's when his parents forced him to learn english. From the best teacher in Korea. 

Peniel Shin.