MTL - Mai Kitsune Waifu - Chapter 1227 See mother-in-law

The apocalypse has arrived, unleashing monsters across the globe.Jeremy, a high school student with a past life as a mercenary, awakens to an SSS-tier ability known as “The Eye of Omniscience.” This power allows him to perceive hidden cues invisible to others.[There's a silver treasure chest in the room to the left. Opening the chest with your foot guarantees a 100% chance to obtain a silver-grade item!][There's a hidden boss in the girls' bathroom. Defeating it with a sanitary pad will surely drop a rare skill scroll!][Slapping the job-change statue 99 times during your job change will unlock the hidden class “God Desecrator”!]While the rest of humanity is still living in fear, Jeremy has already obtained various god-level rewards thanks to his Eye of Omniscience.While others are still figuring out how to survive the apocalypse, Jeremy has already reached the pinnacle of humanity, confronting the gods themselves!

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

“We live in a world of gliphs. The left arm chamber, right arm chamber, left leg chamber, right leg chamber, wind chamber and the heart chamber. These are the six chambers of gliph that represent a glipher’s quality.”

In his previous life, he was the best metalsmith on the continent; even the most powerful fighters came to him for weapons. He was no doubt a powerful man, but sadly, his incapability to retaliate left him at the mercy of others.

Chui Yim, once dead, reincarnated into the world of gliphs, accompanied by Heaven’s Flame. However, the violent introduction of Heaven’s Flame crippled his heart chamber.

Born with a heart deficiency, he was unable to perform strenuous exercise, let alone engage in physical fights. As such, his father who worked as a doctor made him study hard and sent him to the Riding Clouds Academy, where he met a close friend who was escaping from his family’s mu*derer.

Determined to write his own destiny, Chui Yim vowed to break limits and take up the path of a cultivator.

Crossing to One Piece world, he became Roger’s younger brother.