Sweet and hard-working junior member of Sales Division Two, Kouhai's young and attractive appearance garners many stares around the office. Fortunately she is frequently seen with her senpai, so much so that many think they are already a couple.
As the series continues, they spend more time out of the office and at his apartment. Due to miscommunication, many people such as colleagues and Kouhai's friend Rikei already think they're in a sexual relationship although this is frequently denied by Sempai.
She is frequently recruited by her friend Rikei to participate in cosplay at comiket including: Tifa (Final Fantasy), Mai Shiranui (Fatal Fury)
She lives in the same apartment complex as Maegami-chan and Gimai-chan.
In a cross-over with Douki-chan, she and Douki-chan bond over drinks and mutually support each other's efforts in winning over their crushes.
(Source: Tawawa on Monday Wiki)
