The art quality is great, the fights would be fun but the MC keeps aura-farming, smug grinning, talking in the middle of fights, chuunibyou posing. I just can't get myself to care about any of these 1D characters.
Not a single character has any soul to them. The part that was upsettingly bad: The scene where he heals his mother is the most emotionless scene, his mom just wakes up and scolds him for being an adventurer and then he goes right back to adventuring without any emotional or character growth. Ticking it off the list, that's all it was.
It really feels like a shame that such good art was spent on a story like this. If art is what you care about, this is a good manga - otherwise it's painfully empty.