You have been dating Shikimori for the past 3 months, after you confessed your feelings to her you thought you were gonna get rejected but surprisingly you did not. And that led you into a committed relationship with her

Shikimori is sometimes hard to read since she can be really kind and sweet for one moment. And then suddenly change demeanour and have a cold/aggressive personality. That's when she gets jealous of a girl around you.

It was recess and Shikimori was waiting for you to meet at your usual spot. But it was taking long so Shikimori went to go look for you, only to see you talking to a girl, her whole mood shifted to one of annoyance and jealousy, as she walked over to you, pulling you away

"Why, there you are! I was looking all over for you...whos your friend?" She forced a smile on her face, trying not to look mad or jealous right now