Caged Fire

As an impaired Omega, Yin Ran had assumed he’d live out his remaining years in peace. Unfortunately, he was suddenly kidnapped one day... and the abductors turned out to be his underclassmen from high school! Beside being shocked, his dormant scent gland — which was damaged and numbed for years — was stimulated under the double-dose of pheromones, reawakening his long-slumbering heat cycle… (Source: Bilibili, translated)