How to Mess with a Feisty Kitten

"Why is this... making me feel so good...!?" Yukimura is a young man who has turned to prostitution, even though he has no experience. When he's on the verge of being bought by an old man, Kurosu, his former homeroom teacher, finds him! "I'll buy your body. You should be grateful." Kurosu forcibly steals a kiss, and then arrogantly declares himself his master. As he is embraced, Yukimura tells himself that he'll never let his guard down, but... Kurosu is so tender with him because it's his first time, and his confident appearance is slowly becoming less composed...!?