The Main Characters That Only I Know - Chapter 12:

A Federation Colonel with abnormal thoughts was locked in a dark room and met a little looney.

“Your whole body emits a scent that I dread (covet) and fear (desire).”

A frigid Colonel X little looney roommate: A sweet story of interstellar travel

- Description from Novelupdates

“Junior Brother Qin, do you want a wife or not?” A well-meaning senior martial brother of Qin Changqing's brought a wife to him, and Qin Changqing had no reason to refuse.

Qin Changqing unexpectedly arrived in this world, diligently cultivated for thirty years, yet still remained useless. Well, he decided to give up his cultivation, get married, and have children. That would be great!

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Within the world of Arcadia, there exists an eccentric restaurant. The restaurant causes countless apex Mages to set aside their arrogance and pride, just to feast upon its delicacies. What did you say? You want to abduct the Chef? Could it be that you also want to force him to be your personal Chef? Are you an idiot? You would first have to get through a legion of men and women whose stomachs and bodies were thoroughly satisfied. Not to mention, the restaurant is guarded by a Divine Fox who killed a Mana God Realm Mage with a casual whip of her tail. What, a Divine Fox isn’t strong enough to scare you? Then, how about a group of Yanderes?

Thanks to the Goddess, he was reincarnated into nobility!　That should have been great―― but the skill he got, 【Toxin Decomposition EX】 was simply too plain, and he was made fun of everyday at home……