@Akikako
I still don't get what she wants and what he wants....
She wanted to bully him, was it as revenge or from some unhealthy affection is still unclear to me, but she definitely knew from the start who he is. Everything went swiftly until he realized who she was and then something broke.
He run away from the troubling experience into the fake kawaii world of idols, but as a twist of fate, his favorite idol was the same girl he wanted to forget about. Since he lost that, now he'll need to confront back with reality. Now the question is will he just start following a different idol as if nothing happened, will something break within him or will he actually take responsibility.