My OP Minion System in the Apocalypse - Chapter 266 Impenetrable Defence

Hello, my fellow Tsunade enjoyers!Tired of MCs collecting more sharingans than Danzo?Had enough of Uchiha revenge plots and Konoha crush plans?Feeling hopeless because of yet another self-insert, wish-fulfillment garbage?Fear not!This book will recharge your Tsunadium daily!Enjoy real romance and peak comedy.Your favorite tsundere heroine is here!What are you waiting for?Get your Limited Edition today—only for 699 ryo!*Sincerely yours,Kakuzu.*(NO REFUNDS)---What to expect:Romance+comedy combo, with Tsunade as the female lead.MC is strong from the start but plays a supportive role.Not a system novel, though the MC technically has one.MC is a slacker and a flirt, but there’s no harem.Add to this a slight take on Hokage duties and politics.---It’s a translation, by the way, but I cleaned it up a bit.All credit goes to the original creators.Upload schedule: 1 chapter a day.If you're looking for the raw title or MTL, check out my pinned review below.

There are a total of seven sins, and a revelation is made to a young man named Alex that he is destined to become a demon lord, more especially a demon lord of sin called LUST.

It's not like he can change that and because he always knew something about himself was different—not in a physical sense, well, maybe a little—and not in a mental sense—but rather because he is thrown into a demonic war that compels him to accept his new reality.

He was only aware of a difference in himself. Relating to him and the ladies who are drawn to him... Well, it was more or less like he was a magnet in front of all the girls, and all the girls were drawn to him like a metal.

He is high above, the mysterious and terrible King of the Wild. With one glance, he can see people’s romances. He hates women to the extreme, but at his first glance of her, he dotes on her and spoils her.
She is a humble transmigrator, a miracle doctor who doesn’t care for the many handsome men around her. She only wants to become strong, to be worthy of that god-like man. But when she’s finally sure of her feelings, she finds out she’s already been married for years…
……
When wronged：
She uses strength to hit the big handsome iceberg-like man in front of her eyes. “People say that I’m not good enough for you, but it is you who is an old cow eating tender grass!”
A man seizes the main point and laughs like an evildoer. “This husband has to eat the grass to confirm if it is tender or not!” He puts out the red candle……
……
The world says：
The barbarian king has no heart and has no passion.
A pregnant woman very miserably thinks,” If he has no passion, then who is responsible for this big belly?”

- Description from Novelupdates

There was a Senior Brother and a Junior Sister. One of them was transmigrated to this world and had cheats while the other was the reincarnation of a Great Emperor.