https://www.novelupdates.com/series/elixir-supplier/ I've only started reading this (currently on around ch-30+) and I don't know how to describe it. The writing style is pretty simplistic. I would have said it is a slice of life novel because of diary-like day-by-day chapters, except that I feel the MC is developing too fast. He's obliviously and naively drawing so much attention to himself, but it's not the author building up for a gag. Ah. It looks like someone added Slice of Life to the genres now.