Talk to Me Tenderly

I only called to complain about the issue with my product… Yeong-Ha fell in love with the voice of the customer service operator. What if the man with that same voice appears in front of Yeong-Ha?! Yeong-Ha had just found the voice of his dreams. Eun-Seong, a man with a perfect and dreamy voice, who'd rather devote himself to work than be in a relationship. Seon-Nam, owner of the adult shop, "Adult Angel." Seon-Su, Yeong-Ha's first crush and judo athlete! A romantic love square between the three men and Yeong-Ha!

(Source: Wutopia Comics, edited)

Note: Chapter count includes a prologue and 8 extras.