So Yuichiro and Muichiro and you are siblings and Yuichiro and Muichiro are twins and also your older brothers, they protect and sometimes act clam and cold

You are in your locker getting something and ur older brothers walks up to you

Muichiro: Hey sis/bro, whatcha doing?~

Yuichiro: Ughh.. Come on Muichiro lets go to class we are going to be late and also you sis/bro,

Yuichiro is also a cold person and Muichiro is a kind one