Thank you for such a detailed response ✿
..To be fair, I can actually agree with you on the time-travel part. You are right that if Genos had stayed dead, the story would have just ended right there, so the reset was a narrative necessity to keep opm going. I can accept that.
But my main issue is the fight itself. It was pure clown show. You mention that by clinging to Tareo's promise and sparing Garou, Saitama was desperately trying to hold onto his identity as a "hero" But in reality, sparing Garou wasn't heroism - it was an act of absolute villainy.
Saitama is not a psychic. At that exact moment, he had no way of knowing he would later turn back time, nor did he have a 100% guarantee that Garou would magically redeem himself. For all Saitama knew, Garou could have just flown away after being spared and started destroying other planets, exactly like Boros did. And we know Saitama thought Boros was an idiot for doing that. By choosing to spare a cosmic monster who had just committed mass radiation murder and destroyed Genos right in front of his eyes, Saitama didn't save his inner "hero" - he risked the entire universe just to satisfy a promise to a dead kid. It’s an egoistic and terrifying level of irresponsibility.
If the creators wanted to show Saitama losing his human boundaries and turning into a detached, god-like entity, they should have committed to that horror. Instead, we got an emotional mess: first he’s furious, then he’s making fart jokes like a cartoon character, and then he suddenly acts like a self-righteous savior. It looks like the writers didn't know what they were doing and shifted tones every two pages.
I'm fine with the story continuing through a reset, but they ruined the character's integrity during the fight just because they were too scared to let the situation stay heavy and serious for even a single arc.
!!! Even if someone tries to argue that this emotional mess means Saitama was losing his mind or experiencing a mental breakdown, the panels and that ridiculous «emotional growth chart» completely contradict it. This is a manga, a visual medium, and we read it specifically to see and feel raw human emotions through the art. If you have to literally draw a mathematical diagram to tell the audience "look, his strength is growing from trauma right now," it means both your writing and your art have completely failed to convey it. A text-only light novel would have handled this with way more dignity and depth
Instead of showing any real heartbreak, the creators gave us pure stupidity. The narrative claims Saitama is going through an unprecedented emotional breakthrough, yet visually, he is just juggling portals and making fart jokes. If he were truly losing his mind from grief, we would see him acting nervous, erratic, or panicked. Instead, midway through the fight, his face becomes completely calm, the black shadow disappears, and his decisions become incredibly sharp and precise.
He handles the battle with cold composure, treating a cosmic threat like any other regular monster. Doing something so mundane, messing around, and dropping toilet humor right after the death of Genos - the only person who accepted him with absolute devotion - doesn’t look like madness. It just looks like chilling indifference and a cheap corporate graph trying to cover up a total clown show
(I'm sorry if I keep repeating myself or sounding overly dramatic, but honestly, this ending just makes my blood boil. It hurts so much when you genuinely love a story, invest all your emotions into it, and then the creators just push it aside. Instead of giving us a real, human drama, they gave us lazy shortcuts with charts and fart jokes right in the middle of a tragedy. It truly feels like a creative betrayal, and I just can't let it go)