Melt my heart with your voice at close range

Taiyou Koga, an ordinary college student whose hobby is gaming, is a fan of "a_u," a fellow player in the same online game. They've never talked to each other directly, but a_u is kind, skilled at the game, and above all, has the most amazing voice…! Taiyou, has a voice fetish, and secretly fantasizes about getting closer to him and having him whisper all sorts of things. Then, one day, as Taiyou was about to fall asleep, he ends up having a one on one call with a_u! They talk all night and decide to meet in real life, but the person who shows up is Ayato Utsumi, his rival from elementary school…!?

(Source: ShuCream, translated)

Note: Chapter 2 was split into two parts in the original serialization and later combined in the volume release.