【A Sci-Fi ABO Novel】 Lu Yan is a thorn that grew wild in the slums—a scheming, ruthless omega. He Huai is the son of a count, an alpha who plays the piano, makes crafts, bakes cookies, and arranges flowers like a delicate princess. When the thorn meets the princess: Lu Yan: Why is he more omega-like than me? He Huai: He smells so good. — At 26, Lu Yan is admitted to the Galactic First Military Academy, becoming the oldest student in his class. Worse, he encounters the most notorious instructor in the academy's history. Staring at the icy, intimidating instructor with a three-meter aura, Lu Yan’s expression cracks. ...That’s the ‘princess’?! Seven years ago, he and He Huai did everything short of bonding. But Lu Yan still kicked him to the curb and vanished for seven years. Now, the estranged lovers have become—teacher and student. — The man pins Lu Yan hard against the wall, his gaze dark and unfathomable. "Last night, I forgot the most important thing—marking you." Lu Yan swallows hard under the oppressive pheromones. Damn, where’s my adorable little princess? Who the hell is this psycho?! [Ruthless, sharp-tongued-but-soft-hearted strong bottom× A seemingly delicate ‘princess’ who’s actually a scheming big boss in disguise top.]