Starting from Zero - Book 4 - Chapter 26 – The Ace (Part 1)

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

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!

Lu Jianyan is absolutely certain that the world he lives in has been crazy.

The romantic friend suddenly announced that he would love him to death; the stranger suddenly decided to die for him … It seemed that the whole world wanted to fall in love with him overnight.

Lu Jianyan: What? [Dazed.jpg]

World: Friend, have you heard of fast reincarnation with the system? There are always a few people who firmly believe that attacking you is the best shortcut to complete the task.

Lu Jianyan: Keep it simple. Please let the way to complete the task simple.

- Description from Novelupdates

The main character is reborn as a character from a game he played in his previous life. This character falls into ruin along with the villainess, spending the last of their years together. A man named Kururi Helan.