Unrivaled: I was reincarnated as a defective artificial human, a homunculus, but I worked so hard that I became the strongest.

『Reincarnated as Nothing (a Cell), I Endeavored to Grow Strong』

The protagonist, living a mundane and unfulfilling life, one day dies in an accident.

This turn of events, of course, signals an isekai reincarnation—

or so I thought, until I found myself reincarnated not as a human, but as a "cell" of a homunculus!?

What am I supposed to do in this culture medium!?

The world is one where monsters run rampant.

To protect myself from such threats, I went through trial and error, and gradually began to acquire power—.

This is the story of an incompetent man who, through his efforts, ended up acquiring peerless, ultimate power.