Harry Potter Watch-Along: Witnessing the Rise and Fall of Another World

[Next Generation + Marauder-Era Generation + Founders-Era Generation + OOC Warning + GGAD + Switching Between First and Third Person + Watch-Along + Some Moe Academy Characters Appear + Multiple Original Characters + Saving Characters Readers Can't Get Over + Platonic and Romantic Pairings]

In an instant, time froze. People from different eras were transported to the Hogwarts Great Hall, where something sudden caught their attention

Harry Potter had died in the final battle...

The entire parallel universe was about to collapse...

Screen: A viewing of the parallel worlds is about to begin. After the viewing, Harry Potter will be resurrected!

And so, people from different timelines began watching another world... (This includes a look at the grandchildren's generation, which is completely different from the original story.)

Voldemort: “Wait, is this the right one? I'm supposed to resurrect Harry Potter? Σ(ﾟдﾟ;)”

A fleeting life, countless parallel universes, and a million different destinies...

(There is no fixed protagonist, so Harry Potter is the designated main character. Everyone who appears is in their third year at Hogwarts. Aside from the next generation, everyone else appearing in the other timelines is a student or teacher. The viewing timeline ends with “Happy New Year.” I've always believed that saving the world doesn't mean saving just one person, but everyone...)

Please note that the volumes are not connected. Each is essentially a standalone story. Apart from Chapter One, the rest are like different routes you can pick at random: Route A, Route B, Route C.