Like others have mentioned, there might be a death flag... and it's hard to ignore !!
But the premise is very interesting, I like the positive mindset of the protagonist, is like she's fighting really hard to think that way despite destiny's plans.... Also! nice save of the girl in the front, she kinda pushed the duty on her but also saved her from looking like a rude person in front of the whole class.
Looks like the series will focus a lot on negative emotions and trying to get through them... It's gonna be a difficult ride!