The 42-year-old uncle who left his village for the first time was the Strongest! ♪ In a frontier village located between the Demon King's territory and the Kingdom, the villagers spent their days repelling attacking monsters. Graham, a 42-year-old who had been fighting on the front lines of such a village, loses an arm one day due to a large-scale invasion by the Demon King's army. Realizing he would become a burden, Graham decides to leave the village and begins a second life as an Adventurer of the Kingdom──. The fun and refreshing Adventure tale of the strongest middle-aged man begins here!