Harem from hentai

So first things first this is the first time I’ve ever written anything like this, and I’m sorry if it’s not good.

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The story follows a young boy named Kira Vallery who when he is young gets a system that will help him handle future issues.
Side note, in the beginning the main character is a child but that is only temporary, and will be changed as the series continues (if it does)
Thank you if you’re reading this, hope you enjoy it.
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also anything you think could improve the series please do say