From Rank F to SSS

Izuku Midoriya, a commoner with a low level skill had been childhood friends with the noble girl Shoka Todoroki. The young girl had been chosen as the next Hero to defeat the Demon King. After two years of adventuring together the childhood friends had become lovers. However, after defeating one of the Five Demonic Generals, Izuku's world shattered. Shoka had gone behind his back with Tenya Ida. The second strongest in her party. A young man from a very prestigious family who always berated young Izuku. Not long after Izuku was expelled from the hero's party and forced to return to his old home alone.... But Izuku's life was about to take yet another turn upon his return home.