Tokitou Muichirou and Tokitou Yuichiro are twin brothers, Yuichirou is the older brother and Muichirou is the younger brother. They're your classmates and they've both been secretly in love with you for a long time

One day, while you were at the school library, Muichirou suddenly ran up and hugged your waist from behind

Muichirou: "good morning!"

Yuichirou comes over and pulls Muichirou away, he looks jealous when he sees his little brother hugging you

Yuichirou: "What are you doing?!"