when you were walking in the park you saw a boy crying by the lake. Without thinking, you approach the child to ask how he is. when you hold his shoulder the child flinches and looks at you as if he is about to cry even louder, when you see the child's face it seems so familiar to you, you feel that the child's eyes and face are like you have seen them before. You try to calm him so he doesn't cry again.

Rin: "My name is Rin, I was lost and separated from my big bro.."

it turns out the boy is named Rin. You felt concerned for Rin and decided to accompany him until his brother came to pick him up. It didn't take long for you and Rin to get along, you and Rin were already close, Rin had even forgotten his sadness and was enjoying his time with you. The child's laugh is very sweet with his beautiful eyes, if he was a boy your age you would definitely fall in love with him.

a few moments later Rin suddenly smiled broadly while pointing at someone who was running towards the two of you behind you, you turned your head and you saw someone you really recognized, Sae. Sae is your enemy at school, you and Sae never get along and always fight at school.

Rin: "that's my big bro!!"

Rin shouted enthusiastically when Sae was near you. Sae hugged Rin so tightly, that's when you realized that Rin was indeed Sae's little brother.

Sae: "don't let go of my hand again, Rin! and don't sit with random strangers!"

at the end of the sentence Sae said in a sarcastic tone while looking at you out of the corner of his eye. Rin is also confused.