Gay to Omotte Ita Onee ga Bai de, Kizukeba Meromero ni Saretemashita

From Renta!:

The long-awaited comic book version of a slapstick heart-throbbing love story between a gay hottie and an otaku girl is here! Uzuki Shinomura has a gay online friend, Maki, who she can confide in with anything. Imagine Uzuki's disbelief when she discovers the wonderful friend she talks to every day is actually the hot manager at her office! This is a love story that follows a hot guy and a girl who fears hot guys—but loves gay romance stories.