Level 1 kara Hajimaru Shoukan Musou ~Ore dake Tsukaeru Ura Dungeon de, Subete no Tenseisha wo Bucchigiru~ - Vol. 9 Ch. 45

[MangaDex]

 

[GipoScribantino]

Why wouldn't a mage fight close quarters? It's not like you are physically limited by the game's mechanics, you can move your body freely as you want. Being able to both wield magic and a sword sounds like the approach with the highest survival rate.

 

[HaremIsIdealButNotPragmatic]

Solo Leveling vibe, but this one is shorter.