After the fourth-year agricultural student Yu Xia is killed by her own pesticide, she binds to a System and becomes a supporting character in every world.
Being a villain is fine, being a passerby is fine, and even being a cannon-fodder character is fine. She just can't be the protagonist. But for some reason, after meeting Yu Xia, the male leads all decide they have to be with her.
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[World One] 1v3: She transmigrates into a gloomy, lovesick girl who disguises herself as a boy at an elite academy. Yu Xia secretly takes pictures of her male roommates every day, steals their underwear, and sneaks into their beds, just waiting to be exposed, expelled, and reviled by everyone.
But her hot-tempered first roommate is even more careful than she is, and washes her underwear every day. Her arrogant, aloof second roommate has erotic dreams about her every night and demands that she take responsibility for him every day. Her third male roommate, meanwhile, loves buying her all kinds of cute little dresses.
Very funny, heroine