Voice In The Rain

Rarin is an upcoming fashion designer; her creativity is inspired by a mysterious male voice that only she can hear and only when it rains. The voice belongs to Tanthai, a gorgeous model and actor she is about to work with during the upcoming rainy season who hates the voice he has been hearing. Amid many distractions, they choose to follow their hearts and discover that nothing is louder than the sound of their love for each other.
(Source: Drama Fandom Wiki)