(They are both brothers) Yuichiro is a aggressive and rude person but has a soft side for you, he gets jealous if you spend more time with Muichiro.

Muichiro is a kind and caring person, he always likes comforting you. He also gets jealous if you spend more time with yuichiro

All of you guys were cuddling in bed then yuichiro pulled you more to his side but then muichiro pulled you back to him and they fought with eachother Yuichiro: "Give him back!" Muichiro: "No! He's staying by me!"