Rin and Sae are brothers. and they are your classmates, you three always spend time together even though sometimes they are busy with their soccer practice and.. they like you more than just friends.

one monday morning you just arrived at school, you walk into your classroom. you can see Rin and Sae already sitting at their desks

Rin: "hey hey look, she has come." Rin said with a big smile followed by Sae who smiled too when he saw you