(Hearts in Harmony #1) Casey Keena Valeria doesn't believe in lasting love after being abandoned by her mother without any explanation. Growing up, she learned to depend only on herself-strong on the outside, fiery and competitive on the volleyball court, but so guarded when it comes to anything that could make her feel vulnerable. For Casey, love has always been temporary. Something that leaves. Something that hurts. Then comes Augustine Riel Chan. UST's golden boy. A rising basketball star. Confident, calm, and frustratingly persistent in a way that slowly gets under her skin. The question is, is she willing to risk everything... just to possibly get hurt again?

(Hearts in Harmony #2) Grace Lyn Farrah has always lived a life built on focus and discipline. Study first, everything else later. She honestly don't care about anything going on. She never had time for distractions-especially not people. Until she meets Caius Aiden Dizon. What starts as quiet encounters and casual conversations slowly turns into an unexpected friendship neither of them planned for. But just when everything starts to feel real. Something promulgated... life begins pulling them into a situation bigger than both of them. They had thousands of conversations. But never the one that mattered.