The story is extremely light and whimsical with everything it does, so much so that it can quickly become a boring tedious read because it doesn't drawn in any emotional investment and can sometimes be frustrating because of how irrational or nonsensical things get. For example; in a world where magic is rare and having 20 spells is considered amazing, the fact that the MC (Named Lucio) quickly learned 1000 magic despite being a child doesn't bother anyone. His Noble grandfather and the idiot King hopelessly dote on him without any care for the dangers that much power -should- bring. Of course Lucio doesn't really face threats or consequences for anything in this series and almost everyone does nothing but heap endless praise and worship on him.

Lucio himself doesn't apply common sense or consideration to the actions he takes either and just spends every day screwing around with magic he learned from reading manga and playing with his ever growing number of loli. Which is another s*upid thing, The story quickly gives him 6 and 7 year old wives and they spend time playing in their own home because they became independent from the adults, except no visible effort is made into giving these child wives proper education or even Lucio as apparently children are expected to raise and educate themselves in this world once they are 'married'. He ends up pressed into a manga librarian job after saving the princess, then promoted to duke after meeting the king just because he was liked, he soon enough gets sent to manage a vassal country where he meets his third wife who was the previous queen who was an adult women, but it's okay because he just uses magic to turn her into a loli and nobody in the country notices this missing queen... it really just keeps getting more ridiculous as it goes on. While the premise sounds interesting and I gave it two stars before I now say it's one star and I really recommend avoiding this series.

My favorite chapter is chapter 28 when the main character's peerage keeps going up consecutively, I found it hilarious. Even funnier was the reasons for each noble peerage rank up!

The MC just never questions anything or is least bit cautious. Often he would disguise himself and his girls as grown ups with [Fake Growth]. I thought it was pretty badass at first but he then meets a 20year old girl who is obviously desperate for love and is jealous of his 2 kids wives. So the MC uses the spell to make her temporary young again so she can relive as a child once more. She forcefully acts like a spoiled child wishing to be pampered. But right when he was going to switch her back she refuses and says she wants to play more. Its obvious she's waiting for the chance to be his "wife" but MC is oblivious to it. Its like she manipulated the whole thing to happen! It gets on my nerves. Should I just ignore that the whole scene was manipulated like that? Should I just ignore that his 2 wives easily accepted it because "its fun with more people"? They take it like their playing house. It becomes predictable at this point. The Princess and another older girl come to the Harem. Maybe the Demon King will go with the same process. Get girl younger to join your harem. Why introduce more unnecessary girls? It had good characters like the Grandpa and King. I was starting to warm up to the Older brother. Now these characters blindly follow the MC and it just gets plain boring. It was fine the way it was but it becomes to Harem-mie.. Lets not forget he's only 9 and she's 20!

-Do nothing but read manga to gain magic

-Gets born into a family with a small library of manga (expensive grimoires)

-Some reason people, for no reason, cannot read or has difficulty in reading manga

-Gains brides who instantly fall in love, with almost no foundation

-Like a traumatized child will instantly get better and fall in love, then literally fan and feed him while reading manga... serious

-Beast person who got "freed" follows MC and gets treated like a pet (walks, fetch, and everything) 100% ok with it

-Does nothing and instantly charms the king into gaining title after title

- The big bro, although the first born of a great noble house have no common sense or something decent. Showing up wherever MC is, having no shame nor any other activity.

- The grandpa and king, dumb enough to just splurge everything for MC. The worse is their family never even mentioned. The one mentioned from MC family is grandpa, bigbro, maid, that's it. The king is worse, he got bunch of kids and responsibility (at least 7 kid), yet he only care about MC who is someone he know by chance and yet making MC a duke at the first chance they meet.

- 1st wife at 6, well maybe it's ok since it other world and noble.

- 2nd wife at 8 or 9, well he do it to save her, so maybe it's okay.

- 3rd wife, that's the line dude, I don't have problem with having 3rd wife for story, but the author decided to make some king's aunty a loli, change their appearance, heart, and personality into a loli, just to end up marrying by some cliche condition.

- The world itself build around MC's shenanigan, s*avery exist but it's a crime of high importance to not hit a married man/woman that even the 'minister' afraid of.