Game for Romance -My Handsome Colleague Is a Gamer Too...!?-

Did Haruto and I go to bed together!? Ayumi Shimizu is a simple office worker with a simple hobby: playing Grand Knight Fantasy on her smartphone. One day she's invited by another female player to meet up for a drink. Who should turn up, but the ace from her own company's sales department, Haruto!

(Source: MangaPlaza)