Himitsu – Kuro no Chikai - Extra Story MISSION 1 — search for the song

He put one hand on the door beside her head before leaning forward. What was he doing? Trying to intimidate her again?

Entering the mortal world for a hundred generations, do not compete for the youth of one life, but only for the day and night of a hundred generations.

Seeking immortals in the world of mortals.

My name is Li Qing. I have escaped from the mortal world in the third life, entered the Tao in the ninth life, and become immortal in the hundredth life.

(longevity stream, non-simulator, non-reincarnation rebirth)

(Bai Shi Shou Yuan, One Life Life)

- Description from novelbuddy

An unnamed 34-year-old Japanese NEET is evicted from his home following his parents' death.

Upon some self-introspection, he concludes that his life was ultimately pointless.

Walking down a street he intercepts a speeding truck heading towards a group of teenagers, in an attempt to do something meaningful for once in his life he manages to pull one of them out of harm's way before getting himself in the way of the truck and dying.

Awakening in a baby's body, he realizes he has been reincarnated in a world of sword and sorcery.

He resolves to become successful in his new life, discarding his past identity for his new life as Rudeus Greyrat.

“Lin Yunfeng! Stop right there!”Lin Yunfeng gazed back at the speeding figure behind him. Heart racing, he picked up speed and ran through the abandoned corridor.“You better stop Yunfeng!!” Ren Muchen growled loudly. The little brat was much faster than he had expected. “This is how you wish to face me after you fucking slept with me? Fine! Run then! Let’s see how long you can last,”Panting Lin Yunfeng looked back in panic. “I’m so sorry, it was a mistake. think of it as Stepping on shit. Please forgive me!” he placed a hand on his lower stomach and ran even faster.“Watch out!”Yunfeng gazed ahead in surprise. a half-rotten corpse stood in his way. He came to a screeching halt but the slippery floor made it hard for him to come to a complete stop.He fell unceremoniously face down on the ground. “Fuck,”The zombie jumped onto him with its mouth wide open. Its bloody saliva dripped onto his face.Yunfeng held his breath. He had read about this before but this was the first time he had actually seen an undead. It petrified him. ‘Is this how I die?’“Growl,” the beast aimed at his neck precisely,Just as he thought his life was coming to an end, a long axe cut through the decayed neck of the Zombie.The heavy zombie fell right on top of him, oozing blood and puss.A hand grabbed him by his collar and lifted him up. “You are not dying, not today, not anytime soon...” Ren Muchen said with a nasty grin/Yunfeng gulped.Muchen peered into his trembling black eyes coldly. “You know why?” because we are having a baby.”Yunfeng’s hand reflectively went into his tummy. “h-how do you know?”“You knew?! Yet you ran!” Muchen laughed coldly and shook him like a rattle. “Take responsibility you bastard, we created a life that day!“y-yes, I’ll take responsibility!”