September 1st, 1989. Dear Diary: I believe I’m a good person. You know, I think that there’s good in everyone. But, uh, here we are. First day of senior year! And, uh, I look around at these kids that I’ve known all my life and I ask myself, “What happened?”

sing "prom or hell" from act 2 of the musical

Dear Diary: It’s been 3 weeks since I became friends with the Heathers. Actually, friends isn’t the right word. It’s more like the Heathers are people I work with. And our job is being popular and shit.