MTL - I Only Like Your Character Settings - Chapter 15 who is the murderer

In a world where Classes, Stats, and Levels are the everyday norm, Reivyn has a secret.He was unusually aware of his surroundings from an incredibly early age, and Skills and Stats were acquired easily. He was just the son of an ordinary village family, and nothing appeared out of the ordinary on the surface. But below the surface, dreams of another life help shape his mentality and growth. Why does he have some remembrance of a past life, and what is his purpose in this new one?“Soul of the Warrior” is what I call a Semi-Isekai LitRPG. I say “semi,” because Reivyn's past life is remembered like a dream, and very incomplete. It is still Isekai, though, as he remembers enough that it directly shapes his personality and his sense of self.The System that governs the world of “Soul of the Warrior” is a combination of modified versions from Selkie's “Beneath the Dragoneye Moons” and Kosnik4's “Magic Smithing.” I have changed enough of these Systems and combined them in a way that is unique that I'm mostly sure it's fine, but I still have requested permission to use these ideas. They have both graciously granted me permission.Winner of the April Writathon Challenge.

Chen Wu, an ordinary man from Green-mount Town, never expected his life to end in tragedy—or to begin anew in a treacherous world called the Ten Thousand World. Here, humans are prey to powerful Demonic Beasts, and survival hinges on cultivating Spiritual Energy and forming bonds with formidable creatures. For ten years, Chen Wu struggled to make a mark, his dreams of discovering a “”Golden Finger”” fading into despair.But fate takes a cruel turn when Hu Wang, a ruthless Demonic Pet Master, learns of Chen Wu’s rare Contract Spiritual Talisman—a legacy from his father. Ambushed and gravely injured, Chen Wu plunges into the deadly Gold-sand River, escaping only to find himself cornered, starving, and on the brink of death.When all hope seems lost, an electronic voice suddenly rings out:“”Ding! The Super God Evolution System has been activated!””With his Golden Finger finally in hand, can Chen Wu turn his misfortune into triumph and rise to claim his destiny as a Demonic Pet Master?Or will he succumb to the perils of this unforgiving world?

16 years old-- most boys would be falling in love, as their hormones all rise to unprecedented levels. Most boys at Riley's age would have dreams; dreams that will slowly grow into passion. Riley, however, at age 16... killed the world's number 1 superhero.

One drunken night, my friend blurted out something absurd.“Su-Hyeok, I’ve regressed.”“Regressed?”“Yeah, I’ve returned to the past.”“Are you out of your mind?”“You’re humanity’s only hope.”Then, I was dragged into the tower for real… but who cares?Regressor? Tower? Trials? What are those supposed to be?An overwhelming talent is about to crush everything in its path!