MTL - Rebirth: Family Chaebol - Chapter 600 Terminal illness?

Ji Nai-tang paid attention to Cen Muqi for 12 years. This secret love had been hidden in his heart. When he finally couldn’t hide it, he sent himself in front of Cen Muqi, pretending to be a pig to eat the tiger and step by step planning to trap the golden thigh.

Ji Nai-tang: It is not that I look good, it is that you make me look good.

Cen Muqi: It turns out that it is important to have a boyfriend who will take pictures.

Ji Nai-tang: But you are not my boyfriend~

Cen Muqi: Can I apply for it?

Ji Nai-tang: What are you applying for?

Cen Muqi: Applying to be your boyfriend!

- Description from Novelupdates

fun story

Vahn was an atypical youth. Due to a rare mutation, his blood had the potential to target and attack ailments within the human body. Touted as a universal cure, people had elevated his status above the norm and given him the classification "Panacea". In the media, he was hailed as a great hero who would usher in a new era or human wellness. However, behind the scenes things weren't so bright. Being a unique individual, Vahn spent his entire youth locked up in a lab with various scientists and research teams using his body and blood to perform endless amounts of experiments. The only solace in his suffering was the various anime and manga made available to him between experiments. He often imagined himself as the protagonist in a world of his own, finally in control of his own destiny. For years he nurtured this desire, until at the age of 14 he died when an organization had tried to kidnap him from the lab...