NU link- https://www.novelupdates.com/series/ossan-boukensha-no-jimichi-na-isekai-tabi/ WN link- https://ncode.syosetu.com/n0121gf/ Kadokawa- https://www.kadokawa.co.jp/product/322101000215/ (It's available on Amazon as well if you are going to buy LN) An ossan gets saved right before he becomes human meat sauce on the road and is transported to another world of magic. His only special skill is rejuvenation which could make him kinda immortal? Official Description- An old man who is tired of his slow body leaves the youngsters across the country in the dust as he transfers to another world. But you know? It’s a little too late for that! What am I supposed to do!? Just then, the god offered him a single lifeline. His one ray of hope is a skill that allows him to slowly grow younger. And with this small hope, the old man begins his journey. Associated Names- 1.An Old Man Adventurer’s Steady Journey through Another World 2.Ossan Boukensha no Isekai Hourouki - Wakagairi skill de jimichi ni ikinobiru (LN) 3.Ossan Boukensha no Jimichi na Isekai Tabi (WN) 4..おっさん冒険者の地道な異世界旅 (WN) 5.おっさん冒険者の異世界放浪記 若返りスキルで地道に生き延びる (LN)
It seems alright for now. He wasn't op from the start or overly heroic on his first encounter and used his head.