Bog Standard Isekai - Chapter 31Book 1.

Jiang Hao transmigrated and was born into an ordinary family and was forcibly sold into the demonic sect, becoming a disciple of the demonic sect.He wanted to calmly cultivate and gradually become stronger in order to survive in the world of cultivation.However, he was subjected to all sorts of humiliations by a female demon.With a vast difference in strength, he could only endure the humiliation and sneakily survive, keeping his weapons hidden and strike when the opportunity arises.

A data loving young man from Earth has an accident which transports him to a dark land filled with terrifying creatures and magical powers. Fortunately for him, he has a Biological Assistance Chip to ease his path. However, things in this bizarre and strange world are not always as they seem, and, though it is a tremendous asset, the chip doesn’t always work as expected. With all of the crazy creatures and magical mayhem around him, one can only wonder what the future holds for this young man…

- Description from novelupdates

An advertising director is reborn in 1988 Hollywood as an eighteen-year-old blond-haired westerner named Eric Williams.

Haruka, consulted by a friend who ran into a ghost at school, goes to the Movie Research Circle to see a man with mysterious powers. However, the person who meets her there is an affected young man with terrible bed hair and sleepy eyes. What does Haruka consult him about? A confinement and murder case at a women’s university, a false suicide case… The great detective who can see the spirits of the dead, Saitou Yakumo, takes these cases on in this astoundingly high-speed spiritual mystery!