No, she's evil. All she thinks about is what she wants, even if it means torturing others. She manipulated everyone--the bullies, Nana, Himari. She caused pain, confusion, factions, and the whole time making Nana's school life a living hell. That's evil in my book. Imagine she did it to YOU. You are the one she's lying to, manipulating and scheming, causing to be an outcast, causing rumors, isolating, threatening. Now, do you think she's evil? She's doing all this on purpose. Imagine it's a guy doing it. A stalker guy. Same difference.
No, I disagree. Yuyu is manipulating the bulling girls as well, she gave them the openings and info to bully Nana. She's a Yandere. She loves Nana but she wants her only for herself and once she tried to break away she just went full psycho and decided a hurting Nana is better. (If I can't have you nobody can, style.)
Oh, that chapter, I remembered someone explaining the possibility that's not what it actually happened
Yes, I agree with you. I was replying to the top comment that she's not evil.
Yuyu is high on the list of non-supernatural/non-crime manga characters I'd like to see die. Seriously. She's evil.