Replaying Hero's Education Diary (1) HJ Library

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Go back to the past and raise your old friends!
A world that is being invaded by Makai. The main character, Aki, challenges a decisive battle against the demons with his friends, but he was defeated without strength and the world was ruined.
Aki, who returned to the past with the help of the witch, is determined to become their teacher of the past and lead them in a better direction to change the future that has faced a bad end.
Aki's battle to save his old friends and save the world again begins now! "-- Come on, third rate. If you think you can beat the teacher I!"