Ayaka-chan (Shiho Kato) likes Hiroko-senpai (Kwankazu Mori) from the same unit very much.

One day, in order to show her favor to Hiroko-senpai, Ayaka dyed her black hair blonde and wore a pink strapless dress to work.

Office colleagues headed by Yuya-senpai (Kibiya Honda) were all surprised by Ayaka's completely different look, but Hiroko-senpai didn't take her seriously at all.

But in fact, Hiroko told Mama-san (Kazuya Seto) and the regulars at the Lily Bar where she often went at night: "That straight girl is so dangerous!"Hiroko is actually a person who likes women very much, and she is full of expectations for Ayaka's attack in her heart.

Thinking that both of them are straight women, the misunderstandings between the two people begin to get entangled...!?“I'm watching, they are all seniors...”The ultimate interlaced office girl love comedy begins!