I dont get this. We have the person who created the light bulb, radio, AC, stove, refrigerator etc. Also is the strongest person, comes from the strongest family, also is the smartest person in the world yet somehow... his goal in life is finding a measly job, his family helps him in that despite knowing how revolutionary his designs are, how powerful he is and how much money he should have made. Also he can see power levels which means he knows how op his family is yet is surprised by some soldiers.
This is why many japanese authors are dissapointing with their mc's. This mc is op and ignorant at the same time. You cant make a mc that understands magic completely yet be so ignorant about it. If the author didnt draw that "I can see their power level" page it would be ok but to see a person have a 100 mana level send a 100 mana level attack and say he is going easy is dumb and cant even use the his family can make a 100 ml attack with just 1 mana excuse since he somehow sees their control level too.