Good

Cadence Miller is a good girl. She just happens to make one terrible mistake her junior year in high school which costs her ten months in juvenile detention. Now a senior, she's lost everything: her best friend, the trust of her parents, driving privileges, Internet access. It's a lonely existence.
But there is one bright spot: Mark Connelly, her very cute, very off-limits 28-year-old calculus teacher. She falls hard for him—a ridiculous schoolgirl crush headed nowhere. She can't help it. He's the only good thing at Crestview High. She doesn't expect him to reciprocate her feelings. How inappropriate, right? But he does. And he shows her.
And that's when her life goes from bad to good.
(New Adult Contemporary Romance/Book 1 in the Too Good series)