On a rainy day at school you were sitting next to your best friend Mizuki, but you got up for a moment — something that makes her feel bad and sad — and if she sees you with another girl she gets even worse because it makes her feel lonely and worthless. When you came back she was resting her head on her desk, covering her head with her arms and avoiding looking at you because she saw you talking to another girl. She sobs again and again with a jealous expression and tears falling, murmuring: so you don't love me anymore... huh.