The Blade of Evolution-Walking Alone in the Dungeon

A man awakened his healing ability but this ability is trash. During a mission in an underground dungeon with his team, all the members of his team except him were killed. This was due to the angry “last priest” who was released because of them. in this dungeon he got a sword and upgraded his powers with that sword…. What would that man do alone against all that? Chapter Titles: 1: 废柴治疗 (Wastewood Treatment) 2: 隐藏BOSS (Hide BOSS*) *This is different from 隐蔵BOSS which means Hidden BOSS. Look closely at the second kanji on both. 3: 去死吧! (Go to Hell!) 4: 最后的大祭司 (The Last High Priest) NOTE: All title translations use both Google Translate and Bing Translate. If they differ slightly, I use the one that makes the most sense.