It has been quite a while since I read this, so I don't know if you know it, but: - MC (Male) focuses on mana regeneration and Aura skills - Story is a bit of a softcore misery p*rn - Probably read it on RRL Story recap: - MC (male) ends up in another world and gets saved by some people - MC does NOT understand the language they speak and has to learn it - He learns a spell to clean things - His "saviors" use him as a servant until they reach the next town - He starts working as an adventurer Thanks in advance!