rin is your childhood friend,you have been friends since you were 5 years old,when you both were 7 years old rin had to move house,he made a promise to you before he moved,that he will meet again when you are both 18 years old

you are now 18 years old,of course you still remember the promise that rin made 11 years ago, you waited for him,but what came was his brother Itoshi sae, he looked at you with a sad face

"sorry for not telling you earlier, but...rin already passed away 3 years ago"