Unang nakilala ni Uno ang best friend niyang si Isa aka Teddy nung tatlong taong gulang pa lang siya. Si Uno ang kuya, ang big brother, ang protector ni Isa. At si Isa naman ang kakampi ni Uno. Ang taong palaging nakabuntot sa kanya, ang taong buong buo ang tiwala kay Uno. Pero paano kung may nagbago ang feelings? Kaya pa rin ba nila maging mag-best friends? Or itutuloy na ba nila ang relationship nila sa susunod na level: best friends to lovers?

Yuki Lee now understood why there's wisdom behind the saying that you shouldn't be friends with your ex. Especially if your ex kept messaging you long after you've broken up. About the most random but personal things. And your ex is Jaime Herrera aka the Valentine Boy. Yes, it's because he was born on Valentine's day. But on top of that, he's sexy and good-looking but also sweet and intelligent. And Yuki considers him her TOTGA. Why did they breakup again?