the manhwa about a spy or an undercover agent maybe an assassin, not sure. but he has to conceal his identity. he came to work at an academy as a teacher. he has long black hair(not sure) and wears glasses.
if I remember correctly, his students are pretty intelligent, too. I wanna mark it.
the manhwa about a spy or an undercover agent maybe an assassin, not sure. but he has to conceal his identity. he came to work at an academy as a teacher. he has long black hair(not sure) and wears glasses.
if I remember correctly, his students are pretty intelligent, too. I wanna mark it.