Good Deeds of Kane of Old GuyOssan Boukensha Kein no Zenkou,Middle-aged Adventurer Kein’s Good Deed,おっさん冒険者ケインの善行

A story about a kind man who deserves much better than what his little ambition has given him. Kane is a middle-aged and unambitious adventurer who, while in the middle of herb gathering, finds the rare itemResurrection fruit. Kane thinks about selling it and turn it into money, but he meets a girl seeking medicine to save her companions life. Since she looks like Altena, his late childhood friend, he gives it in exchange for small change. Actually, the girl is the strongest adventurer Anastrea, who people call The Sword Princess. The next day, Kane suddenly gets an invitation to join an S rank party, beats down the strongest and the worst monster, miraculously gains lots of money, and finally gets a confession by a 13 years old saint. Kanes simple life will change completely because of his encounter with Anastrea.