Ossan Boukensha Kane no Zenkou

A middle-aged adventurer named Kane discovers a rare item called the 『Resurrection fruit』 while collecting herbs. Initially intending to sell it, he meets a girl in need of medicine to save someone's life. She resembles Kane's deceased childhood friend, Altena, and he trades the fruit for small change. The girl is actually Anastrea, a top adventurer known as the sword princess. The following day, Kane receives an invitation to join an S rank party, defeats a powerful and dangerous monster, earns a large amount of money, and is confessed to by a 20-year-old saint. This encounter with Anastrea marks the beginning of a dramatic change in Kane's previously simple life.