Marking Omega

Tori Yoshida is a \\\'flawed\\\' omega. Unlike other omegas, he has a unique constitution - he doesn\\\'t go into heat, ever since puberty, and can\\\'t smell or feel alpha pheromones. While this may be a setback for normal omegas, it\\\'s his saving grace that landed him his job as a teacher in a world where omegas are at a disadvantage. Everything is well until he meets the new teacher, Kei Hidaka, a supposedly beta. Things happen, and as it turns out, Kei is actually an alpha, and it seems he triggered Tori\\\'s first-ever heat. Now the two have to keep each other\\\'s secret from the whole school while maintaining a purely physical relationship. That\\\'s all it was, right?