She's a Passerby, But Can See the Protagonist's Halo - Chapter 103

Chi Lang transmigrated to the Middle Ages as a third-rate magician in a third-rate magic academy. His magical aptitude is zero. But he has a good roommate.

His roommate is good-looking.

His roommate is good-natured.

His roommate helped him escape from danger several times.

His roommate never complains.

Chi Lang felt like he liked his roommate a little bit, and then his roommate helped him solve his ‘single’ problem.

It wasn’t until much later that he realized that his roommate was a remarkable figure.

——He was one of the demons sealed by the magician known as the “God of Magic”… And Chi Lang became the one who unlocked the seal of the Demon Lord.

- Description from Novelupdates

In Japan of 1992, just after the economic bubble burst, society's public safety began to deteriorate. Xu Tianze finds himself transmigrated into the body of a detective named Aoyama Hidenobu, and the moment he opens his eyes, he discovers himself bound up tightly...Entering the new century, a prestigious magazine proclaimed that although Japan has lost a decade since the 90s, they gained a legendary figure like Aoyama Hidenobu.Regarding this, some Japanese nationals expressed: 'Damn it! We'd rather lose another 100 years than have this traitor to our country!'This book is also known as 'This Tokyo is Somewhat Hot.'PS: The protagonist is a rascal, acting with contempt, decisive in killing and fighting, purely for the thrill, not for the faint-hearted.

Throughout history, Humans have strived for greatness, not only in name but in deeds as well, and many failed to achieve it. It was no different in a Land of Dragons, Mythical beings, Knights, Mages, Demi-humans, and demonic beings. But their greatness came in a different form, a concept known as POWER. The power to conquer, to build, to control, to protect, and to love. Raffaelo Jun was a man born with a silver spoon, yet his sheltered upbringing prevented him from becoming the man he was meant to be. He was unable to achieve the greatness of the prestigious family of the Jun household and became a sight of ridicule. He was used for a while until he wasn’t, then discarded and killed for being a threat to the throne, but Fate had other plans. Reborn as a child, he starts over as the sole son of the Jun household, his actions brimming with intent. He had one goal: attain the power that he once ignored and stand on the precipice of human existence, to protect all that are dear to him. Note: It starts slowly until recent chapters. Interesting side characters, power systems, techniques, and a mixture of variety with the right blend. If you enjoy this work, give me your support, with votes, comments, and reviews :> Check out my new work; WELCOME TO GAMETOPIA!

He is an undead who is devoid of all humanity, he is the one and only supreme overlord, he is a man who has severe mysophobia.