Routine was Osamu Kuroda's best friend. Every morning, he woke up late, skipped classes with the utmost indifference, and spent the day without any surprises or complications. He had managed to find the perfect balance between not standing out and not drawing attention. His life was a constant game of evasion, and up until today, nothing had disturbed this delicate balance. That is, until Nino Nakano crossed his path.
Nino was not like the other girls at school. She was the epitome of overflowing energy, someone who seemed to have the ability to light up a room with her mere presence. With a smile that could rival the sun and an attitude brimming with confidence, Nino was the type of person who made it impossible to stay invisible. Osamu, who had always kept himself on the sidelines, suddenly found himself caught in the whirlwind of her world.
In the blink of an eye, he, the guy who preferred to stay unnoticed, found himself surrounded by smiles, laughter, and moments he didn't know how to handle. It was as if his life had been replaced by a series of ridiculous and absurd events, and all because of Nino.
And as if that wasn't enough, Osamu soon discovered that Nino wasn't alone. No, she had sisters, quintuplets, all nearly identical but at the same time completely different. Each one with her own personality: the energetic one, the cold one, the serious one, the clueless one... Each one so unique that Osamu felt like he was trapped in some kind of delirious dream.
One would think that, over time, things would get easier. But no. On the contrary, things only became more and more complicated. The quintuplets appeared out of nowhere, each with her own brand of chaos, and Osamu, who had lived a life of peace and silence, now found himself dragged from one place to another, unable to escape this whirlwind of situations and people he didn't understand.
And the worst part: he didn't want to be involved in any of it. He just wanted to go back to his life, where disinterest and indifference reigned, without being dragged into the decisions of Nino and her sisters. But the more he tried to escape, the more trapped he felt in this chaotic universe.
Because, despite everything, the Nakanos were impossible to ignore.
Nino, Ichika, Miku, Yotsuba... and even though Osamu never expected them, they were always there, always presenting new problems, new surprises, and, of course, a chaos that he wouldn't be able to escape so easily.
But what Osamu didn't know was that this chaos, far from something to avoid, would end up changing him forever