Hufflepuff has a bad reputation because Helga Hufflepuff took everyone into her house. She didn't really single out people. Therefore, people think that they're not special because they got sorted into a "normal" house.
Hufflepuffs just always seem to lose. Even when they do happen to have a lucky strike, like when Cedric beats Harry at Quidditch or is selected as Hogwarts champion, it never sees itself all the way through for Hufflepuff. This losing streak makes them eligible for the worst house.
There really is no weakest house but Ravenclaw and Hufflepuff weren't mentioned as much so they are usually seen as weak or forgettable. An excerpt from Deathly Hallows - Chapter 31 - The Battle of Hogwarts: 'Slowly the four tables emptied.
Originally Answered: Why is Hufflepuff considered the most unpopular Hogwarts house ? The most obvious reasons is because even the Sorting Hat, the expert on the Houses, names Helga Hufflepuff as "taking all the rest", implying she took all the leftovers who didn't make the other stricter Houses.
Originally Answered: Why do people hate Hufflepuff in Harry Potter? Hufflepuff isn't well represented, and is not well-defined. It's easy to simplify the houses-Gryffindor is the daring house, Slytherin is the ruthless house, Ravenclaw is the smart house, and Hufflepuff is the nice house.
In the manga, rather than being killed in Volume 6 of The Promised Neverland Season 2, Norman is taken in by a man called Peter Ratri and agrees to help him with his research in an experimental facility that attempts to achieve mass production of human meat.
Manga and anime series The Promised Neverland is full of tragic deaths, but Conny is the first character to die – here's her sad death explained. The Promised Neverland is full of tragic demises, but Conny was the first character to die – here's her sad death explained and how it kickstarts the plot of the series.