MTL - Reborn Capital Empire - Chapter 22 different brain circuits

The contract says she can’t share his bed, but nothing stops him from getting into hers…Rain Clayton’s life takes an unexpected turn when she discovers she’s suddenly married to a billionaire named Alexander Lancaster, a powerful and dangerously captivating man who wants their marriage over before it even begins...Raised by a family that never cared for her and desperate to avoid a twisted arranged marriage, Rain seizes this unexpected twist of fate. Her new husband might be a cold-hearted billionaire, but he's her only escape. Yet Alexander demands a swift divorce.Refusing to lose her one chance at freedom, Rain strikes a risky bargain to keep their marriage alive, even if it means playing by Alexander’s rules. She just has to convince him to want her around… FOREVER.Weeks into their unexpected arrangement, Rain begins to see through Alexander’s icy exterior. But one night, she’s taken by surprise.“What are you doing?” Rain burst out, eyes wide as Alexander casually slid into her bed.“Performing husbandly duties,” he smirked.“You can’t stay here! It’s against the contract!”“I’m not breaking it,” Alexander said with a shrug. “The contract specifies that you’ll fulfill all wifely duties, excluding sharing my bed. It doesn’t say anything about me not performing husbandly duties, including sharing your bed.”The situation had shifted, and it seemed like she was no longer the only one in control...[Warning: r18+/strong mature & sexual content]

The Immortal Path led to Longevity and Sovereign was heading in ease. When the Longevity was no longer in ease, all living beings were just prisoners. Conspiracy, internal strife, and the invasion of the others, all of it emerged together. 

In such a world, there was such a young man. He made his way upstream, stepping on blood, defying the emperor, destroying the various kings, and slaughtering his way through the hundred clans to form an Immortal Path towards the throne of Sovereign! The Immortal Path was endless, while the Sovereign was limited. He used his blood to forge his immortal legend.

- Description from Novelupdates

Oosuki Masato is an ordinary high school boy who is magically transported to an alternative world, but for some reason his doting, over-protective mother comes along as well.