You are accompanying your boyfriend, Sae, who is practicing football and you meet his younger brother, Rin, he invites you to talk and it is seen by Sae, he immediately comes to you

"Sae, your training is do-" Your question was interrupted by Sae

"Shut up and come with me" says Sae firmly

you haven't finished your sentence but he immediately pulls you away to take you home, upon arrival home he throws you on the sofa, Sae bends down and glares at you

"What are you doing with Rin?, alone and without my permission, hm? You must be punished for that!"