I Became The Strongest With My Imagination IBSI

As kids, most of us had a great imagination. We used our young and creative minds to create false stories in our minds. We would imagine sticks as swords, and ourselves as heroes. But just like always, we outgrow such things and move on with our lives. But what if one day that very imagination and creativity become the key to your strength? This is the story of one man, who reincarnated into a fantasy world with the ability to imagine anything into existence.

A magic barrier? No problem!
A magical sword? No problem!
The strongest sword skill? No problem!
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Disclaimer: This novel will have a lot of gags and parodies, if that bothers you then I suggest you don't read this story. The Mc will also be OP and won't hide his strength, but I will put a tiny restriction on his power, that is all.