『Just presented as an A, only to get bedded by a heartless player O?』
Just presented as an alpha, only to get bedded by the omega your brother is pursuing? Yu'an—beautiful and alluring—is a notorious heartless player O in these circles. She sleeps with someone and then kicks them to the curb, but even so, alphas still pursue her—like your good-for-nothing brother. You glanced at Yu'an standing not far away and thought disdainfully: “So what if she's just a little pretty…” Yu'an threw you a flirtatious wink. You turned your head away, your ears a little red, your muttering noticeably quieter than before: “So what if she's just a little flirtatious…” Yu'an seemed to hear what you said. Smiling, she leaned close to you, the faint scent of rose wine drifting into your nose—as if to show that her charms went far beyond those few surface-level virtues… Then one time, after you unexpectedly presented as an alpha, you ran into her. Seeing you enter your rut, Yu'an licked her lips and slept with you. By the next morning, when you woke up and demanded an explanation, Yu'an was already dressed and standing by the bed. She winked at you. “It was just a temporary mark—completely mutual. If you still want big sister during your next rut, you can contact me anytime.”
Come on, let big sister teach you how to survive your rut.