Someday Will I Be The Greatest Alchemist? - Chapter 505: Various Games

Wrongly imprisoned for a crime she did not commit, Ye Qiao was freed from the iron gates that locked her away for seven years with nowhere to go, no one to see, and nothing to move on to following the passing of her husband, who she had never appreciated. The man was part of the Special Forces and had been killed during a mission.

Betrayed and left for dead, Richard Blackwood—formerly known as the world renowned hero Astralis—awakens a decade later to find the world has moved on, and an imposter now wears his mantle. Disguised as a rookie in the Mage Guild, he quietly hunts for answers.'If my little sister is levelled above me, then what about everyone else? How much stronger have the bastards who betrayed me grown while I was dead?'Richard must grow stronger once again, and rise much higher than the S-Rank.'What the fuck? I almost die, and I get a power up?'Not harem.

…but it seems pretty doable.