An Old Man Adventurer's Wandering Journey in Another World - Surviving Steadily With a Rejuvenating Skill

Shinichi Saito (early 40s) lived a life without hobbies or enjoyment, merely commuting between work and home. However, one day, just as he was about to be hit by a truck, he was transported to another world. He thought he’d receive a cheat skill and live a carefree life in this new world, but the only ability he was granted was a rejuvenation skill that could only be used once a year…!?