Bog Standard Isekai - Chapter 3Book 1:

After dying miserably, Chaos suddenly finds himself reborn in the body of a chimera between a Vampire and a Dragon created by an insane Elder Lich who claims to be his father.

Thrown into a an universe filled with darkness, monsters, dungeons, and gods, he finds himself born as the calamity of the entire galaxy, the primordial evil, an entity that shouldn’t exist!

Packed with a cold-headed mind, a calm demeanor, and the power of both Vampires and Dragons developing within his chimeric body, Chaos will awaken his Chaos Magic, and gain Skills from the monsters that he eats, bringing forth the end of all those that dare come to take his life!

This is the tale of the Devourer of Worlds, the Living Calamity, the Primordial Evil, Chaos!

But was he all of this? Or was Chaos misunderstood?

Watch as Chaos discovers the truth about his origins, and finds a purpose in his new life, and the fate that awaits him!

Once, because of a pair of purple eyes he was scorned. He is a wangye known across the land, cold and bloodthirsty, looking disdainfully upon the world.

Once, because of a mother’s death she received a father’s resentment. She is a publicly known junzhu whose looks have been destroyed, pitiful and weak.

In reality, he has a pair of this world’s most beautiful eyes, the most formidable background, the most imposing strength.

In reality, she has a peerless face, the most unshakable background, and the most ingenious medical skills.

She, Lan You Nian, aloof and cold-hearted, underneath the appearance of a celestial maiden is a battered, wounded heart.

When the cruel and ruthless him met the indifferent her, who adores who most deeply? Who once again puts a smiles on for whom?

- Description from novelupdates

When I became a rich young master, I had to enjoy it.

Zhou Heng drank too much wine, and woke up to find that he had time-traveled, and there was a beautiful woman lying beside him. Just when Zhou Heng, a bachelor of ten thousand years, wanted to take charge, he suddenly discovered that this woman who had a relationship with him was called Sadako, and she was the Sadako in Midnight Ring.

Sadako is just Sadako, pretty and human, but the memories that come out one after another make Zhou Heng discover that his name is Takeo Saeki, and he is the husband of Kayako in the Grudge of the Great Evil Spirit.

Later, at work, Zhou Heng discovered that his female colleague had a strange identity. The daughter of his client, Mimiko Mizunuma, had always been very interested in him when she came into contact with him.

- Description from novelbuddy