'Fufufu, I made you moan <3' The other girl, Ritsuka, reacts by getting bashful and biting her. 'Wah! What the?! It hurts! It hurts!' Jump cut to the next day, with her dressed up in a heavy scarf. 'Why have you been wearing a scarf all this time, Kozuka-san?' 'Ah... well... a cat bit my neck...' 'Eh?! Are you okay?!' "Eehehe...' then, internally, 'curse you, Ritsuka!'

source: Even If It Was Just Once, I Regret It