Top-Tier Superpower Student - Chapter 677 - 649: Ordered Everything

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

[Mature Content]“The brightest light casts the darkest shadow”Eirin lived her life in the shadows of her precious friend, but she soon fell into deep chaos after she stumbled upon a humanoid that tried to take her life without an ounce of hesitation. She was saved by a group of people who wielded unknown abilities, and the moment she woke up, it all felt like a nightmare.Just when she thought she had escaped death, the people who saved her are now the ones after her life. Misfortunes started going her way, and creatures unknown to her appeared one by one, taking the most precious person away from her and leaving Eirin in despair.Secrets started unfolding, and the monster Eirin sought for so long was not the one she expected them to be.

Step inside if you dare, but be warned—this is no ordinary shop. Those who enter never leave the same… if they leave at all. A sinister force lurks within, fueled by a dark past and a thirst for revenge. The price? Twelve lives for twelve sins. As officials race to put an end to the bloodshed, the shop’s deadly grip tightens, claiming innocent victims one by one. Will anyone uncover the truth before it's too late? If you crave spine-tingling horror, heart-pounding thrills, and a mystery that refuses to stay buried, this book will haunt you long after the last page.

I was a genius in the Earthen Plane.