Waouh ! Instant drop the very first chapter while I usually am the first one to say to wait 10 chapters or so.
Everything is wrong from background to the exam.
- Japanese thing about bowing to the ground to anyone everytime.
- How can he think there are simple blueprint he is ask for if he never saw any of his applyiance ? How is it possible if as they said his creation flood the country...but not his family ?
- Another lover of magic...clueless about magic to the point of not knowing the leading figure of the magic world, his very family !
- Typical trope "YOU ARE FREAKING STRONG" yelled by everyone followed by "I am a dead weight". Just, kill yourself.
- The main story is about teaching him common sense...meaning it will never happen as it's what the story is about ! So only in a very unlikely last chapter...maybe ?
- I will not talk about the girl as it's only the first chapter but I can already see the straight forward type falling in love, keep shouting he is insane, and him being "nope !" and maybe thinking he is not worth her if it go that way. The twintail girl will be annoying.
Please at least give stupidity a valid reason
Take Tensei kenja isekai Rafu. MC is clueless at first as he was just summon out of nowhere and know nothing about the world or its power scale. Yet later, he actually hide is power and there is a progression from clueless to awkward, to effectively hide. It's not that hard !
Everything is wrong from background to the exam.
- Japanese thing about bowing to the ground to anyone everytime.
- How can he think there are simple blueprint he is ask for if he never saw any of his applyiance ? How is it possible if as they said his creation flood the country...but not his family ?
- Another lover of magic...clueless about magic to the point of not knowing the leading figure of the magic world, his very family !
- Typical trope "YOU ARE FREAKING STRONG" yelled by everyone followed by "I am a dead weight". Just, kill yourself.
- The main story is about teaching him common sense...meaning it will never happen as it's what the story is about ! So only in a very unlikely last chapter...maybe ?
- I will not talk about the girl as it's only the first chapter but I can already see the straight forward type falling in love, keep shouting he is insane, and him being "nope !" and maybe thinking he is not worth her if it go that way. The twintail girl will be annoying.
Please at least give stupidity a valid reason

Take Tensei kenja isekai Rafu. MC is clueless at first as he was just summon out of nowhere and know nothing about the world or its power scale. Yet later, he actually hide is power and there is a progression from clueless to awkward, to effectively hide. It's not that hard !