Rise of the Life Wizard

*I'm not "useless!" I'll prove it by conquering dungeons!*

One day, magical dungeons suddenly appear in modern Japan, and daily life is completely transofrmed. Gurimu Sakaki was born with a talent for life magic that seems useless for exploring dungeons or defeating monsters. But while exploring a dungeon, he finds a rare item, the "Sage System," which allows me to create new kinds magic…?

(Source: Kadokawa, translated)