MTL - Marvel’s Death Merchant - Chapter 185 Approaching danger

Living things really are ignorant – the greed to obtain the key to knowledge and the fundamentals of energy overpowers them. Little do they know that knowledge is full of lies and energy is the root of destruction. Us, mages, have mastered travelling through space and time. We are invincible, we can turn worlds into dust and you, mere ants, will be wiped out with no trace.

-Mage Adam

An A.I.(Artificial Intelligence) gets reincarnated into a world where he becomes a mage.

Ruan Yōu became a brainless cannon fodder in the Mary Sue entertainment novel, with fair skin, a beautiful face, and long legs. She was criticized by fans as “trying to climb up” after looking at the top male lead too much, and the female lead took the opportunity to suppress her, causing her career to plummet.

Ruan Yōu accepted her fate and decided to retire from the industry to study finance and live a laid-back life as a salted fish.

However, her billionaire parents and CEO brother came knocking on her door, their eyes filled with guilt.

Ruan Yōu: ?!

Retiring forty years early and living a life reclining on the couch as a rich woman has just arrived!

**

Fu Jiazhan had known since he was a child that the little princess who had been betrothed to him had gone missing.

Mrs. Ruan spent her days in tears, holding his hand and choking out, “If Yōuyōu hadn’t gone missing, you and she would be about the same age, and you could have grown up together and taken care of her.”

Fu Jiazhan remembered those words, and when Yōuyōu returned to the wealthy family, he prepared to take care of her as her fiancé. But his future mother-in-law found three rivals for him.

- Description from Novelupdates

I became a heroine who dies during the protagonist’s awakening event.

When a person dies, they either die light as a feather (aka unimportant) or heavy as Mt. Tai (aka very important).