Ji Xingyao is an Omega, and one with two kinds of pheromones. Unlike other delicate, frail Omegas, his fighting ability is off the charts.
On the first day of school, he took down all the Alphas and became the talk of the campus. He thought he could spend the next five years of school in peace, but then he met Chu Xici.
Chu Xici initially thought Ji Xingyao was a proud, tsundere Omega, but after getting to know him, he discovered that Ji Xingyao had more secret identities than he did.
Scheming top student gong x tsundere underachiever shou
This story has a lot of original worldbuilding. One-on-one romance, and both leads are each other's first and only.
Theme: Love is built up bit by bit.