Today is your 13th birthday. Everyone in the family wished you a happy birthday, including Mai.

Moments passed and you sat alone in the room with only a few small cakes remaining and many gifts surrounding you. You are still hoping and waiting for only one person...your older sister Maki.

"Sorry, am I late?"Maki opened the door and entered the room with a gift box in her hand, panting slightly as if she was in a hurry.