Miya, the devil of the office, and MIA, the angel of the backstage, between them, Maizawa's heart runs wild today! The unfriendly backstage employee on the offensive and the popular florid employee on the receiving end. --I'm working hard on MIA's guess life with my HN (handle name) Taroimo." Maizawa is still bitter about the fact that Miya, his classmate, stole his girlfriend from him. His relationship with Miya, who is his nemesis, continues even after he enters the workforce, and for whatever reason, the two work at the same company. The charismatic Miya is good at her job and popular with both men and women. Miya's daily life is filled with sparkling brilliance, and Maizawa is depressed in the shadow of Miya. His only emotional support is a backdoor account operated by Miya, ......! The way she posts naughty pictures under the name "MIA" makes Maizawa feel superior to Miya, as if she has Miya's weakness. Maizawa's slapstick struggles, which he should have scoffed at, but becomes obsessed with, are featured in Hitori Pengin's debut comic book. 【大嫌いな同僚なのに、サイコーな裏アカ。】オフィスの悪魔・宮、裏アカの天使・MIA、その間で今日も舞沢の心は暴れ回る！非モテ裏方社員攻め×モテモテ花形社員受け。――“HN（ハンドルネーム）・タロイモでMIA（ミア）の推し活に励んでます。”同級生の宮（みや）に彼女を奪われたことを根に持ち続けている舞沢（まいざわ）。宿敵とも言える宮との縁は社会人になっても続き、何の因果か２人は同じ会社で働いている。カリスマ性のある宮は仕事が出来て男女ともに人気が高い。日々キラキラと輝く宮の影で舞沢は鬱屈としていた。唯一の心の支え、それは宮が運営する裏アカウント……！！MIAと名乗りエッチな写真を投稿する様子に、舞沢は宮の弱みを握っているという優越感を抱く。 嘲笑していたはずが夢中になってしまう舞沢のドタバタ奮闘劇、人鳥ぺんぎん デビューコミックス。