Tensei Musou ~geemu No Chishiki... - Isekai Kenja No

Features Yuji, an overworked salaryman who tames slimes and accidentally becomes a Sage.

It is often confused with Tensei Kenja no Isekai Life (My Isekai Life), as both are written by the same author, . Isekai Kenja no Tensei Musou ~Geemu no Chishiki...

Unlike many isekai where the protagonist gets a "cheat" ability from a god, the main character, , relies on pure game meta-knowledge . Features Yuji, an overworked salaryman who tames slimes

Eld knows that specific chants or hidden criteria can unlock powerful sub-skills that others don't even know exist. the main character

While Eld appears weak because of his low level, he uses "buff stacking" and critical hit multipliers to solo boss-level monsters that would normally wipe out entire high-level parties. 📖 Comparison: Is this "My Isekai Life"?