Appli de Deatta Kawaikochan wa Idol deshita. The Cutie I Met on the App Was an Idol.

Synopsis

Heartbroken after being dumped by his girlfriend of five years, Teppei is approached by a suspicious account on a matchmaking website whose face is covered and hidden. However, despite the dubious icon, he is intrigued by the high-spirited greeting that the guy gives him when they talk through the matchmaking website. And when they decided to meet up, the guy who approaches him when he is waiting for the person he met on that app just matched his taste...! (Source: Kaiohsha, translated)