MTL - Reborn Capital Empire - ~ The end

Adam Quinn, a 26-year-old US Army ranger, was on his way back from his sixth tour of combat when his plane was ripped apart in a violent storm. Waking up in a new, strange world with a system call the conqueror system.Will Adam choose the path of war or the path of diplomacy?

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates

The outbreak of an unknown virus infection has turned the city of Hanghai into a living hell. The people infected have turned into scary zombies. Three months ago, Qin An’s wife divorced him and told him that the virus was about to spread and that Hanghai city was about to become a quarantine area, leaving him with a pile of supplies. Three months later, he has slowly healed his wounds from the divorce, and now he’s thinking about how to live.

[Congratulations! You’ve unlocked the Dimensional Motel System.][First Mission: A runaway princess—hailed as the most beautiful in the land is being hunted by her step-mother. She was originally headed to the dwarves’ cottage, but the System has rerouted her to your motel instead.][Protect her. Win her trust. And if you manage to woe her, you’ll earn her Affection Points.][Bonus Mission: Sleep with her evil stepmother to unlock more reward]'What kind of weird mission is this? And why does this story sound way too familiar?'