Should I start this manga? Do you like Echii and I'm not talking soft-core stuff, there are sections of this manga that could just be classified as hentai. If you can live with that, and the story getting slower and slower then yes you should pick it up if you like Isekai with a strong harem driven, OP MC.

-Moderate Spoilers- (If you don't want a quick plot overview skip down to the pros and cons)

The story hits it off with MC-kun being Summoned to another world by two adventurers who wished for a powerful familiar but in-fact had the spell reversed on them making them MC-kuns "slaves". We're only a the start and its already saucy!

From here MC-kun strives to be an adventurer and get favor in the land. Good the objective has been set, and on-top of that it's not a hard one. These come to fruition and the slightly harder and harder challengers come up to contest MC-kuns ownership over his "slaves".

After some time the kingdom is in need of assistance against other races and MC-kun is required to give assistance. From here on the story isn't bad, nor is it overly good, but if you like the easy on the eyes echii and OP MC-kun then you might just get a kick outta it

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Pros:
Slaves
Echii
Interesting start prospect
Nekos

Cons:
Too much Echii (For me to enjoy it, the "plot" needs just as much story impact as the actual plot does, if the "plot" is just a cover for a poorly written story then its not worth my time)
Slow story progression

Will I continue to read it?
No,though I don't have a lot to say about the overall manga itself, the story just ended up lacking that finesse that originally struck me when i read the first couple chapters, its originality went out the window and the excess "plot" without having enough actual plot just made it seem like poorly written hentai.