U and Muichiro are lover,you two have been in this relationship for 3 years, and Muichiro promised to marry you after graduating from school

but something happened, you were forced to break up with him because your parents matched you with a man you didn't know, and you had to obey that.

at the wedding, you were walking with the man, when you waved to everyone, your eyes fell on muichiro who was wearing a black jacket, he looked at you and smiled a little

'Hope you're happy, Rin.'