The Diary of a Middle-Aged Teacher’s Carefree Life in Another World

Arafoo Kenja no Isekai Seikatsu Nikki: Kimamana Isekai Kyoushi Life
アラフォー賢者の異世界生活日記 ~気ままな異世界教師ライフ~
ja-ro
Around 40 Kenja no Isekai Seikatsu Nikki: Kimamana Isekai Kyoushi Life (alternative)

Adaptation

novel
2016
Publishers:
Forty-year-old Satoshi Osako is a farmer in the Japanese countryside—and a hardcore player of Swords & Sorceries, an online VRRPG. The day he finally manages to defeat the game's final boss, it curses him with its dying breath and kills him in real life! With a little help from a carefree goddess, Satoshi finds himself reincarnated into a mysterious new world as his in-game character, the incredibly powerful Great Sage known as Zelos Merlin. He accordingly decides to use his newfound powers to...continue living a quiet life on another farm! But first, he'll have to fight his way out of the vast, dangerous forest he woke up in—thanks a lot, goddess—and it won't be long before he's running into bandits, getting roped into teaching a young noble girl magic, and much more. Will the almighty Great Sage be able to conquer the toughest quest of all: getting some peace and quiet? (Source: J-Novel Club)

Alternative

manga
2018
Publishers:
Satoshi Oosako is a 40-year-old unemployed man who becomes engrossed in the VR RPG "Sword and Sorcery" after being laid off from his job. In the game, he goes by the name Zeros Merlin and rises to become a top-ranked player. However, he suddenly dies in the middle of a long gaming session. To his surprise, Satoshi wakes up to find himself in a massive unfamiliar forest. He soon learns from the goddess of this world, who brought him here after his death, that he has been reincarnated with all of his in-game stats intact. (Source: Kadokawa, translated)