In This Life, The Greatest Star In The Universe - Chapter 304:

Life, at times, can be quite unpredictable. But who could have thought it would be to this extent? It's unlikely that any sane person would imagine that in a single day, fate would grant them the chance to witness the end of one world and the opportunity to save another. But is that what our main character truly wants? That is an entirely different question...___________Gain early access to new chapters and support my work on Patreon:patreon.com/nitwishIt's a tale of my attempts to go off the rails of canon and write something distinctly different from it, though I only managed to diverge more or less by the 21st chapter. Some arcs will be reworked, some will remain unchanged, and some will be completely rewritten or cut out. However, the overall plot is unlikely to change. In places, I will alter things for my own convenience. Also, the world's “system” will be severely trimmed down, as I'm not a fan of systems and all those numbers. Something like that.

After sacrificing his life to save another’s, 24-year-old Ryan Ray is pulled from his mundane world and dumped into a realm teetering on the brink of all out war.Tasked by a cryptic, angelic ‘spirit’, he’s given one job: protect a fragile world from a mysterious prophecy. But thanks to the spirit’s charmingly incompetent assistant, Ryan is dropped into the wrong world, a much, much more dangerous one.Will he rise to the challenge and become the hero this plant needs?Probably not. He’s just a human, after all.

Second Awakening? A System? Having lost the battle of the Dark Catastrophe to the demons—spawns of the Dark Gods— humanity is given a chance at making things right once again. Born as a twin into a family of high ranking talent awakeners, Damien Terrace is met with trouble when it is his turn to perform the ritual. After awakening the E-Rank Summoner talent, Damien loses everything to his twin. Exiled by his father to perish away from them, Damien goes through a second awakening that changes the play field for him. Ding! [The God of Summons is furious and has blessed you with a system!] [You have fused with the Mythics Summoning System—A system that only allows you to summon mythical beasts!] [Obtain nineteen Magic Essence Cores to boost your core to the next level!] [Slay 200 more demons to unlock another summon!] Damien’s only option is to evolve!

This is a story about a young man who sought to fight against his destiny. With the help from billions of Dragon Energies trapped on the Rising Dragon Pillar in his body, he emerged from the dark and quenched himself with the blood of ancient dragons. He fought the heaven with the Buddhist Art for the people he loved and built the Eternity Kingdom with his own hands. This is a story about the rise of the Martial Emperor who will rule both earth and heaven.

- Description from Novelupdates