Ashita Niji ga Denakutemo  

Even if There's No Rainbow Tomorrow, May Tomorrow Bring Rainbows, あした虹がでなくても

The manga's story follows gay drag queen Whip, who has a daily routine of idly chatting in a chat app with a user named "Insomniac Salaryman" and listening to their grumbling. Whip develops some light romantic feelings for this person that he has never seen, but dismisses it as a romance that will never happen.(Source: ANN)