MTL - After Wearing the Book, I Became the Second Mary Sue - Chapter 154 make things difficult

Hyde arrives in a doomed world with nothing but his body and fragmented knowledge of the future from a game he once played. He has no grand ambition—why try to save a world already destined to fall? Survival is enough.That is, until he discovers his sister is also transported into that world.However, only he hears the Melody of Nightingale and receives the power to survive.[You have established a connection with The Forgotten Hollow.]Awakening as a Resonant—an elite group with supernatural abilities—he is thrust into a conflict between two worlds. Armed with the authority of space and time, he vows to protect his powerless sister at all cost, even if he has to fight against the Mirage creatures, other Resonants, or even Gods themselves.

With the Goddess’ blessing, he became a 『Divine Knight』 and founded an Empire.
As time passed, he grows older, and by the time the heavens called for him to come, the Goddess showed before him, asking for his last wish.

He wished to be reincarnated in the future.
He dedicated all his life for his people, he had no time to master his own arts.
This time, he wishes to live for himself, forging his body to the utmost limit.

The Goddess complied with his wish.
In the far future, the King shall reincarnate as the 『daughter』 of a renowned Knight family.
And, under some circumstances, she is labeled as a failure of a Knight, however——

「How convenient. I can stand on the foremost line without needing any rank. No better training than actual combat!」

Thus, the legend of the world’s strongest, most beautiful Knight Disciple (♀) has begun—

Transform into Divine Dragon and dominate the world!
He is the only Divine Dragon in the sea who founded an underwater Dragon Palace.
With Crawfish Soldiers and Crab Generals as his followers, wild sharks and gigantic octopuses as his subordinates, he is the dragon that rules the city.

- Description from Novelupdates

“After finding himself transported into a vastly different existence, a man wakes up not as a mogul or heir, but in a modest mountain life with only a younger sibling and six acres of farmland for company. Accompanying him is a miraculous farming system that transforms his simple life into an incredible adventure.Initially hesitant to accept his new role as a farmer, he soon becomes engrossed by the system’s perks. Planting seeds yields $8000, while harvesting crops brings an additional $10,000. Moreover, unique rewards make this occupation surprisingly profitable. Astonishingly, all transactions are in dollars, rapidly increasing his net worth to $10 million. Farming, unexpectedly, becomes an extraordinary endeavor.His life is peaceful, immersed in nature’s beauty and the rhythm of rural living. However, tranquility is broken when a group, including a captivated woman, discovers his farm. They are amazed by his well-tended watermelons and by him, raising questions about his serene life. What secrets does this encounter bring, and what adventures await beyond his mountain retreat?”