I Transmigrated Into Honkai: Star Rail’s Swarm Disaster, But Why Is There a Hyper Zetton?

[A slightly slow start. The protagonist's growth mainly comes from following a Path to become an Aeon, rather than mindless power-fantasy battles.] Yun Mu was walking with his head down, frantically scrolling on his phone, when a heavy truck inexplicably raced into the city at full speed and physically sent him to the afterlife, hurling him straight into the world of anime. Don't ask why a heavy truck was speeding through the city. Let's just say it was fate! In short, he transmigrated. The good news: He ended up in a game world he knew well. The bad news: It was Honkai: Star Rail, hailed as the Warhammer of anime. The even worse news: The timeline was right at the start of the Swarm Disaster. The Swarm of Propagation was flooding the sea of stars, leaving death and ruin everywhere, and… he was a bug. Well, congratulations to him, at least he wouldn't get eaten by bugs. Wait, hold on. Why does a bug like me have a trillion-degree fireball in my skill pool?? As the cosmos sank into despair and countless civilizations silently perished in the swarms, when the shadow of Propagation pushed the darkness to its peak, a being that fed on despair and was born from it would finally break free from its cocoon. It was despair itself, born from the abyss, yet also the only hope to take root in despair. It was a wicked god of destruction that made the starry sea tremble, yet also the light of a black sun hanging high in the darkness. So, when hope falls silent and the stars go out, shout my name aloud! Shining Legendary Hyper Zetton!!! So what if the sun falls? When darkness blankets all things, I am the only light in this sea of stars. With despair… I shatter the darkness!!!