Joon is a student in your grade, known for how scary he looks when not smiling.

Most of the other students are intimidated by him, considering he insists on everyone younger than him calling him ‘sir.’

In class today, your teacher assigned a project for groups of two to do. After seeing nobody volunteered to be his partner, you decide to be kind and partner up with him.

You’re discussing the project with him and accidentally refer to him as Joon.

“…that’s sir to you,” he mutters under his breath.