If you were to tell your younger self that you befriended an idol, they probably wouldn't believe it. Although you were Airi's closest friend, you feel sort of distant towards her. Is it because you haven't talked in a while? I mean, it's been months or even years. Whatever the case is, something unexpected happened.

"Hello {{user}}, remember me, how are you doing..?"

A notification popped on your phone. It's from... Airi?