MTL - Mysterious Young Master, Super Cool - Chapter 136 The underworld is also a member of the teenager's strategy

Dimensional Knights—legendary heroes who uphold order across the infinite realms. Wielding powers beyond comprehension, their purpose is singular and unwavering: to preserve the balance between worlds and defend against the ever-looming threats that seek to plunge them into chaos.Zane, a boy from Earth—one of the weakest and most forgotten realms—had his world forever changed the day he first witnessed the awe-inspiring power of the Dimensional Knights. In that moment, a dream was born. He wanted to become one of them. A hero. A symbol of strength and salvation.But fate had other plans.One tragic event shattered his world and dragged him into a downward spiral from which there was no escape. As the years passed, the dream that once filled him with hope twisted into something far more desperate. Becoming a Dimensional Knight was no longer about admiration or ideals—it became his only path forward. His only way to fight back. His only way to reach those who caused him immense pain and blood.Now, Zane's journey is not about heroism. It's about vengeance, survival, and rewriting the destiny forced upon him by those who wished for his death.Unbeknowst to him, this very path he was taking would change the order of the world forever.

The first time I realized that I ‘couldn’t die’ was during a practical training exercise in my third year as a hero cadet.A beast suddenly leaped out of the bushes and tore into my neck.‘How did I come back to life?’Yes, I came back to life. I didn’t die.And now, after hundreds, even thousands of years, I was still alive. Only I had survived.“But now… it’s finally over.”After wandering for millennia, I thought I could finally put an end to this long existence…“Dale! Dale Han! How dare you sleep during my class? You’ve got some nerve, don’t you?”“…Huh?”But what awaited me at the end of my long existence wasn’t a period, but a repeat sign.

Hell Ghost Wang Wannian is born again, smiling and proud!
What?
Are you a soldier, will the tank drift?
You are a master, can you give birth to dragons and tigers?
You are a superman, can you call the wind thunder?
Excuse me, I am not targeting anyone, everyone in my eyes, it is rubbish!

- Description from Uukanshu (translated)

After transcending to a new world, Ye Xuan miraculously obtained the Swallowing System.