MTL - Billion Technology Crystal System - Chapter 41 : Is this what people do?

This story is centered around the man named Yi Ji-Hyuk, who has spent 1000 years in a Medieval Western fantasy-like world before returning back to the modern-day Earth. When he returns, he finds that his home is facing monster threats, and that humans with superpowers have appeared to protect the innocent people of Earth.

Two years ago, the famous teenage e-sports genius, Daylight, accused an opponent of cheating in a competitive game and eventually disappeared from e-sports.

Two years later, the small streamer (ShadowBlade) dominates in an Overwatch match and runs into the super famous streamer, (KangMing).

Kang Ming: Can you shoot me again?!

– YOU WERE ELIMINATED BY SHADOWBLADE –

Kang Ming: Oh.

Then ShadowBlade finally realized: if I want to die, I must do it myself.

- Description from Novelupdates

Hell's Awakening: The Guardian's RiseIn the fiery depths of Hell, where infernals, demons, and ancient creatures reign, the balance is fragile. At the heart of this underworld stands Azrael, the Guardian of Hell, a powerful being tasked with keeping the infernal realms from chaos and preventing the resurrection of fallen demons. With mastery over fire magic and the strength to command Hell itself, Azrael's existence is defined by vigilance and control.But when a powerful force of rogue infernals escapes their prison, led by a ruthless and vengeful faction, Hell’s foundation begins to crack. As these infernals break free, their goal is clear—to unleash an uprising and bring back the dead. Azrael must face not only these deadly foes but also confront his own inner demons. As the situation escalates, Azrael discovers his own potential for evolution—powers he never knew he possessed that could either save Hell or destroy it entirely.Amid this turmoil, the arrival of deities, including gods of light and purity, threatens to further destabilize Hell’s delicate ecosystem. They believe Hell must be purified, even if it means eradicating the guardian himself. As battles rage, alliances shift, and Azrael’s strength grows, he must decide whether he will uphold the order or reshape Hell in his own image.In this battle of gods, demons, and guardians, Azrael’s evolution is just beginning. The question is not just whether Hell will survive—but if Azrael will become its ultimate ruler—or its ultimate downfall.

Huang Dan’s pain nerve is innately different from the ordinary people. A little tore in his skin can cause him to sweat all over his body painfully to the point of him unable to make a word out.

Somehow, he began to cross world, following Mr. System to do the tasks…

In the first world, Huang Dan realizes what it means to die painfully and to live to die again.

TL’s summary:
MC suddenly transmigrated and is bind to a system, requiring him to solve mysteries. Born with a higher degree of pain sensitivity, he met different people in the different worlds and learns what kind of emotion smiling is.

- Description from Novelupdates