Haruki Atsushi

Lucas has a hard life. In his mid-thirties, a mixture of failures has left him old and crippled, playing pack mule to a couple of young adventures. Then one day, he pulls a magic sword from a stone that tells him he has been chosen to become a hero. Given a youthful form, Lucas must use the power of the sword to vanquish evil and attain a massive harem.

One day, a forever D-rank middle-aged adventurer, Lucas, pulled out the legendary Holy Sword in a drunken stupor and became the strongest! Ever since that day, Lucas’ fate was greatly changed forever. Seeking love and to sate his desires, the reborn middle-aged adventurer's real adventure starts now! Source: MANGA UP! Global