System: My Doomsday Train - Chapter 29: "Your train has been upgraded to Level 2.

'Confucius spoke not of the bizarre, the valiant, the rebellious, nor of spirits and demons.'This is the story of Mok Gyeongwoon, AKA the First Heavenly Demon - Cheon Ma, the forefather of the main character of the popular novel and manwha Nano Machine. This story is the prequel to Nano Machine, taking place 800 years earlier.

【Loving you is the sweetest thing in my heart】

Everyone in the First Affiliated Hospital knows that Xu Mai of the Cardiac Surgery Department is a high-altitude flower with first-class medical skills, first-class talent and appearance, and a icy aura… also first-class, which has frostbitten the hearts of a large number of suitors.

The new intern, Min Yue, became more and more courageous with the cold, persistently chasing after Xu Mai and wagging his tail: “Master, Master, I can warm the bed. The operating room is so cold, will you marry me?”

【Min Yue’s Love Story Theater】

Min Yue: “Master, as soon as I saw you, the dopamine level in my brain rose rapidly.”

Xu Mai was looking at the case and ignored her.

Min Yue pointed to her heart: “Master, the place between my second and fifth ribs is where you live.”

Xu Mai flipped through the medical records, but still ignored her.
Min Yue suddenly hugged her sweetheart from behind: “Master, I like you.”
Xu Mai stared at the case, his ears turned red quietly.
CP: Deputy Chief Physician of Bingshan Beauty x Energetic and Sweet-mouthed Trainee Physician

- Description from novelbuddy

A demon phoenix cultivator died in the hands of his beloved and was merged with a young master with the same name. Their souls were fused and now, the new Feng Fei Yun is struggling to become stronger and survive in the human world.

During the years of study, no one would associate Jiang Huai with Mingshuang. Mingshuang is the school flower, always at the center of the situation, rich and beautiful, and arrogant. Jiang Huai is always No. 1 in the affiliated high school. The boy’s family background is not good, but he is handsome and indifferent, and he treats others with restraint and alienation. Only Mingshuang knows what he looks like in private. One summer night after the college entrance examination, under the camphor tree…

- Description from Novelupdates