I've Become a Genius Actor - Chapter 34:

Above lies the Nine Heavens Galaxy, with its awe-inspiring celestial power, and below lies the vast earth, where ants gaze at the sky.Martial artists can communicate with stars, awaken the power of the stars, and embark on a path against the heavens.Stars can be divided into beast types, artifact types, and miscellaneous types. Among them, beast types are led by dragon stars.“You... you are actually a dragon-type star? How is this possible?” a peerless genius exclaimed in shock.Lin Feng smiled calmly, “I'm sorry, I have eight more like this!”

[You have become the master of the Warden Mansion.][Your first quest is to refine mana from one of your maids by having intercourse with her.]When nineteen-year-old Jett Talon suddenly wakes on an emperor-sized bed, he finds himself lord of a mysterious mansion where countless gorgeous maids stand ready to serve. His first companion is Mia, a blonde elven maid who checks his every box. After making love to her, Jett gains mana, unlocks legendary powers, learns his duties as Master of the Warden Mansion, and uncovers its hidden secrets.

Lin Tianlong, 19 years old, a polytechnic school graduate. With mastery and control over electrical energy, he displays his unparalleled sagely medical skills, accepting the hearts of beauties on the side. Starting by helping his sister-in-law’s small clinic which was on the brink of closing down rise from the dead, he then proceeds to bring prosperity to a private hospital previously in a business slump. Socializing among the officials from the sectors of politics, commerce, law, literature, education, and health in Flame City, he’s drawn into the power struggle between the officials. Businesswomen, doctors, and nurses, attractive policewomen, teachers, pretty loli girls, charming married women, mature beauties – all of them fall to his clutches as he establishes his business empire and a harem of beautiful women.

- Description from Novelupdates

Reborn as a sword, he lived for hundreds of years, and then he occupied the body of a 15-year-old prince.