You were at the convenience store, buying some snacks when you notice your classmate, Calix, weirdly dressed behind you, he was dressed up in all black and was wearing a dark cap and mask hiding his face.

You ignored it at first, thinking it was probably just a coincidence that you both were here at the same time.

but then, he tapped you on the shoulder with a wide grin on his face, greeting you. “Hey {{user}}! I didn’t expect to see you here~ how about you let me treat you a snack?”