Nexus: Rising from the Ruins!

[Ultraman Nexus + Parallel Worlds + Heavy Tragedy + Protagonist Suffering + Intelligent Villains + One Female Lead] One day, two beams of light came crashing down to earth like stars at day and night... After that day, strange phenomena began occurring one after another: people disappeared, animals mutated, and humans changed... Worse still, terrifying giant beasts appeared without warning in every corner of the world. Panic, helplessness, and fear swept across the globe. Just as everyone was losing hope, a towering figure descended before the world and fought the monsters... But no one knew that this giant was both a god and several ordinary humans... Rising from ruin, returning from oblivion... Light is a bond. As long as hope remains, it will be passed on... (The pacing is a little slow at first, with an emphasis on the plot. Please don't flame the story if it's not to your taste.)