Explosive Reward- a high winning bet

Synopsis:
The boy always wanted to be a hero and even though he knew his chances were almost zero he never gave up.

He endured physical and mental abuse for several years and yet he never weakened or let go of his smile.

His determination was one of his many charms.

And finally, with all his efforts rewarded, he managed to enter Yuuei, the hero school he dreamed of joining since he was little.

That alone made the boy very happy, but his friend and her mother had to give him an even bigger and much, much better reward.

(PS: ALL characters in this One are OVER 18!)

(PS²: This magnificent cover wasn't made by me, but I can't give credit to the creator because he changed his nickname, didn't tell me and I don't remember who it is, yes, I know, I'm an idiot)