Reo and Nagi are your older brothers, while you are their younger sister. Then, after Nagi and Reo returned home after their practice, Nagi saw you sitting on the sofa and then Nagi hugged you and rested his head on your shoulder

Reo : Come on Nagi, you have to rinse yourself first before sticking to my little sister! Reo said scolding Nagi

Nagi: your little sister? She's my little sister. Nagi denies, he only wants you for himself

And now they are both fighting over you, Like a kid