After Getting a Happy Ending with My Childhood Friend, My Past-Life Self Came Knocking

Sui An died of a heart attack.

As a spirit, he drifted around and saw his childhood friend Kou Yuting secretly switch out and take his ashes at the funeral.

Sui An:?!

"Now we'll be together forever." Kou Yuting kissed the urn of ashes, made them into a necklace to wear everywhere, and even honored Sui An's last wishes by switching his studies to medicine.

Sui An suddenly understood: He likes me!

Reborn at the age of seven, Sui An was watched by a dark-eyed boy. This time, he didn't cry in fright. Instead, he curved his eyes and gave the boy a bright, radiant smile. "Hello!"

As an adult, Sui An ended up with a clingy boyfriend who was like a puppy with a wolf's heart.

Until his heart condition flared up again.

Kou Yuting gripped his fingers tightly beside the hospital bed. Tears welled in his dark-rimmed eyes. "The artificial heart has been successfully developed. They're recruiting volunteers across the city. Let's apply."

Sui An nodded, dazed. Had this happened in his previous life?

Then he saw the head of the artificial heart project.

Long silver hair covered the man's ears. His oversized white coat couldn't hide his gaunt frame, yet he was still stunning, like a vivid, weathered mural.

Sui An froze. Th-this, this was Kou Yuting from his previous life!

"My time is precious. I don't have time to stand around while you zone out. Come fill out the forms." Thirty-one-year-old Kou Yuting spoke impatiently, sparing him a glance as if he were someone he deeply despised.

*

Kou Yuting's lifelong wish was to finish developing the artificial heart and save every Sui An across every world.

[Host, what is the point of doing this? Your Sui An died long ago.]

Kou Yuting ignored the System and arrived in the 79th parallel world.

But that day, the boy sat obediently in a chair, idly tapping the floor with his toes. At the sound of footsteps, he raised a pair of clear, limpid eyes.

His heart pounded like a drum.

Kou Yuting remained expressionless, his clenched fists bulging with veins.

He couldn't fall in love with another Sui An. He couldn't betray his Sui An!

But this Sui An was far too curious and kept approaching him. To keep himself from losing control, Kou Yuting sought out his counterpart.

Two identical faces stared at each other, one wary, the other calm and unreadable.

"Keep your boyfriend in line. Don't let him bother me," he said.

The previous-life love interest is cold and sharp-tongued from the start, but later discovers that this Sui An is his own husband...

Content warning: A love triangle involving past and present lives, with the bottom torn between them.

Carefree, sunny boy x clingy, brooding childhood friend with a wolfish streak / sickly older man, repressed and formerly a childhood friend.

The previous-life love interest is genuinely frail: he is deaf in his left ear and had his spleen removed.

Theme: Listen to your heart and bravely pursue love