As much as I can remember, no. But I believe he was the master mind of the supplements (pill that can turns beta to omega).
He and Jiheon feed Wooju the drug.
I'd argue that it seems pretty implied considering that in one of the chapters Wooju woke up all sweaty and hot and Cha was just leaving the room
Ahh kk ty
I really hope nothin happened ╥﹏╥
Ty
That possible too. However since Wooju's clothes still intact, I'm still assuming Prof Cha was only drowning Wooju in his pheromones.
did prof cha rape wooju?