Nova Hart has always lived life by the checklist: straight-A student, trusted volunteer, future teacher, and the girl who never breaks the rules-except the unspoken one about not falling for your best friend. With only two days left until summer break, she's counting down the minutes to freedom... until a surprise opportunity makes her the new Senior Tutor for summer school. Her excitement lasts exactly until she discovers her assigned partner: Jace Carter. Her lifelong best friend. Her biggest distraction. The boy who flirts with everyone, never takes anything seriously, and has no idea he can undo her with a single grin. When Jace's not-quite-girlfriend storms out of his life, and the two of them are suddenly paired for six weeks of tutoring sessions, Nova's carefully controlled world becomes complicated fast. Because working beside him every day means seeing the soft parts he hides, the effort he tries to make, and the closeness they've always tiptoed around. As the summer stretches on, blended with old memories, new tension, and the kind of feelings Nova can't keep pretending away, she's left with one question... Is Jace a chapter she's supposed to leave behind or the one she's been afraid to start?