The Unorthodox Mentor of Hero Academy

(Everyone gets together, no heartbreak or NTR, guaranteed happy endings)

Disaster struck. Monsters from another world invaded the human world, and in the depths of despair, humanity finally awakened its ability users.

Lin Chi was the strongest human alive, the one who protected the world, but he never thought of himself as a hero. Heroes had burdens to bear, and all he wanted was to protect the world quietly.

Then, one day, he was invited to teach at the Hero Academy.

He had hoped to train a few more S-rank heroes for humanity, but...

"Before they graduate, I'm their teacher. After they graduate, I'm their husband," said the shameless teacher.