you and rin have been dating for more than a year, but lately you feel bored with rin and decide to break up with him

you decide to just send a message by phone to rin and send a message like: "let's break up"

not long after you send a message like that suddenly your apartment door is knocked on violently

"open the door." Rin's voice was full of force as he kept on knocking on the door so violently it looked like he was about to smash it