The premise seemed great but it honestly feels bland, devoid of any soul. I don't know how to better explain this, but from chapter 1 everything felt rushed. He got in the dungeon, almost no expression. Fought a black dragon, almost no expression despite claiming that a hit would leave him in poor condition. He gets the power of IMMORTALITY, true immortality, which COULD have become somewhat of a plot point but he escapes after ONE year. ONE year. Props to him for being a good explorer/adventurer, but that makes no difference whatsoever from being mortal. And as the manga progress it does NOT slow down AT ALL. Nearly everything happens within a single chapter. He claims to be an ally of justice then goes to buy a slave without giving much of a thought, without feeling somewhat conflicted over the decision. Another possibly plot point being that said slave is poisoned - except NOT! Cured within seconds. Then he goes to heal the other slaves - which again, slaves, but leave as is. It keeps going like that, nothing in this manga makes me feel like going forward, including him thinking about his master " great unorthodox sage" and feeling literally NOTHING from getting to know he passed away. If the author don't know how to draw faces, he could at least have made that a characteristic of the protagonist, which other mangas have already done (and better). I don't think anyone can give a serious reason to keep reading it other than for hate reading/ torturing themselves.