Solution: have the other 2 join the fight.
He'll probably copy their weaker fighting power because he can't turn off his copy giving him the upper hand.
He wore the mask because people thought he was a monster and he had no real way of proving otherwise.
Now, he has a letter of introduction from a renowned merchant and a pretty boy next to him that can validate that he's indeed human.
I started strong, but yeah... it became kind of dull quickly.
It needed a stronger overarching story or better characters to keep going.
Making trope characters that keep devolving to kyaa pervert 1990 humour just isn't enough.
After these 107 volumes, Manabu and Megumi are finally senior citizens. This is the year they take 14 pills a day to not die of old age.
Starting with the next volume, there will be some big developments coming up!