There’s not a thing Kate Guevara can’t explain. She always has rational responds for everything. With her way of thinking, the concept of infinite love will never take its usual effects. It’s not that she doesn’t want to love and be loved, she just doesn’t find eternal love logical enough – until Efrain Marquez came and made her start asking rather than answering. Efrain pierced in her strongest defense – her mind – and she let him. Efrain conquered even her weakest piece – her heart – and she surrendered with a kiss. All she has is his promise of forever. But how trustworthy is his vow? It takes a ‘letter’ to change forever, right?