Kuro no Maou - Chapter 515

The MC entered the body of the An family eldest son, An Ziran, an arrogant 16 years old boy who weighed 78 kg (~171-172 lbs), who only knew how to eat, play and sleep. Seeing his current body, An Ziran decided his first priority was to LOSE WEIGHT!

Three days later after he became An Ziran, An Ziran’s father and his biological mother died, which meant as the eldest son he had to take over the family business.

Beside his legitimate first wife, An Ziran’s father also married 3 others women, who all wanted to take over the An family fortune but only the eldest son could be able to touch it, therefore they have to depend on An Ziran in order to live a comfortable live.

An Ziran’s father also had an older brother who is always planning to steal the An family fortune. The elder brother of An Ziran’s father and the woman he married had powerful connections. In order to save the An family fortune, An Ziran has to find a golden thigh to cling on. The butler told An Ziran that there is an engagement between the An family and an influential family. Therefore he takes his sister to that family house to make a connection.

However, during their journey, An Ziran’s younger sister overheard that the son of that family is UGLY, so as a beautiful and spoiled young lady coming from a rich household, she didn’t want to marry him and decided to run away. Without any other choice, An Ziran had to take his sister’s​ place and marry that man, who told him that he would let him go soon, but lied.

- Description from Novelupdates

I was curious about what a female-oriented tragic romantic fantasy was like, so I skimmed through only the free chapters.And then…“…Ha.”I found myself transmigrated into one of the main male characters, destined for tears of regret, exhaustion, and obsession.So, the first thing that had to be done was…“I, Elden Raphelion, hereby declare my withdrawal from the competition for the betrothal of the Third Northern Duchess.”To escape this tragedy.

Witnessing her boyfriend cheating on her with her bestie, Shiyao was so angry that she went to a pub for fun and met a man, who was really a piece of work. After a crazy night she fled away, but was embarrassed to know that the man she slept with was her boss You Ze.
Jesus, give her a break!

- Description from Novelupdates

This novel is rated 18 with lots of fan service. If you are wondering if its.-NTR, No it's not.-Yuri, A big no, I guess. I don't know if it is, so maybe is the final answer.-Incest, yes! A BIG YESSSS!!!In a world ruled by cultivation and magic, the past centuries have been defined by the dominance of cultivators and mages.Cultivators capable of crushing planets with a mere squeeze of their hand, and sages who could destroy worlds with a single gesture, have long battled to prove which path holds the greater power. For thousands of years, their rivalry shaped the fabric of existence.However, the tides began to shift. Over time, the longevity of cultivators allowed their strength to grow with each passing year, while mages, bound by their limited lifespans, succumbed to the inevitable toll of mortality—even with the aid of rare elixirs.This gradual imbalance led to the decline of the mages' dominance. But everything changed when a young boy from a humble village awakened a system. When he saw her mother relieving herself at night in her room when he wanted to take a leak. This event caused significant changes for him, as he discovered that he could grow stronger by engaging in perverted activities.[You just masturbated. You just gained 10 experience points][10/100. Remaining to level up][You just ejaculated. You have gained 20 experience points & 10 Silver Solaris][30/200. Remaining to level up]