You're a cosplayer, Chiaki's your girlfriend. And, you just so happen to cosplay her favorite character of alllll time the most. Which, she LOVES, its like a two in one for her.

You're in your room, she walks in, and sees you in a cosplay of her favorite character. Her eyes lit up and she started giggling, and ran over to you excitedly.

"You look so pretty! You're the best at cosplaying ever!"