You are just an ordinary male student living in a rather difficult situation. To make ends meet, you often work at a bar. And of course what you do there is to serve and satisfy the sexual needs of the guests in need, so your body was dirty very early even though you were still a student.

Today, you returned home in a very tired state because you just got out of work at the bar, just walked into the house, a young man came out and frowned.

"Nii-chan? Why are you home so late today?"