Si Luna Mercado ay isang simpleng babaeng mahilig sa kape, magbasa ng mga libro at mag-alaga ng pusa. Nagbago ang kaniyang simpleng buhay nang makilala ang lalaking 'di niya akalaing mamahalin niya habang buhay. Ang lalaking ito ay nagngangalang, Sol Trinidad. Naging masayang magkasintahan ang dalawa na tila umikot ang mundo sa isa't isa. Ngunit sabi nga ng Lola ni Luna, ang pag mamahalan ay hindi lamang puro kilig at saya. Ito ay tungkol sa pag-uunawaan sa isa't isa at minsan ay kailangang may magsakripisyo. Ang pagmamahalan nilang dalawa ay hindi tipikal na kuwentong pag-ibig. Nagbago ang takbo ng kanilang buhay noong naganap ang pangyayaring minsan lamang mangyari sa ating buhay-ang Solar Eclipse.

Fluctuating emotions is normal to people. We encounter different scenarios everyday that alters our mood. Though, this is different. The mere fact that I slept soundly on that Sunday night terrifies me. I woke up feeling good on a Monday morning, (which is absolutely questionable already) then doing things I usually do on a school day and yeah, that's when I knew this day is different. The moment I step foot on the area called school, saw my bestfriend in her usual cute bun, felt my heart skip a beat, I knew. I knew I fucked up. The fluctuate of emotions got into me and I found myself in a miserable situation where I'm suddenly developing feelings for my best friend. This shouldn't happen, this must not happen. Falling for your best friend isn't something normal. I should just definitely blame this to the pizza I had on that Sunday night. I shouldn't have slacked during the weekend because look at me now, I am a forever victim of the fluctuating of emotions. Now, what should I do?