Level 0 no Munou Tansakusha to Sagesumarete mo Jitsu wa Sekai Saikyou desu: Tansaku Ranking 1-i wa Nazo no Hito - Vol. 1 Ch. 1.2

[Potato_Dex]

What's crazy is this is worst than the usual op MC plot stories, instead doing any kinda of work for his he just gains them from existing in the dungeon and what makes it worst is that fact he gains his OP skills in a chain reaction...

EX.
MC: Breathes in air
System: "(Due to Air Hardship, Lung capacity increased) (Due to Lung Capacity increase, Stamina Increased to Medium) (Due to Stamina Medium, Speed increase to light speed)" Etc.

 

[electro_neanderthal]

If you peeps want something similar but not complete slop, then I suggest Overpowered Sword. It actually has an MC who works hard from nothing and gets rewarded with a tomboy hot chocolate waifu

Could I pleas get the proper title, or a link if it's on this site? I tried searching for it and found 2 series that I don't think match what you described.