Umidori Tougetsu no "Detarame" na Jijou  

海鳥東月の『でたらめ』な事情, อุมิโดริ โทเก็ตสึ กับภารกิจชวนเอ๊ะ 'เดตาราเมะ' จัง, The BS Situation of Tougetsu Umidori

On one occasion, Tougetsu Umidori gets an unexpected message from her friend Nara Yoshino. This is just the start of a sequence of unusual occurrences. Following this, a girl wearing a cat costume appears at her home, introducing herself as "Bullshit." Through Bullshit's assistance, various odd events transpire, including borrowing someone else's toilet, betrayal, threats, a struggle for liberation, and ultimately a plea for mercy. After everything has ended, Bullshit inquires: "Would you like to eliminate falsehoods with me?" Without comprehending the reason, Umidori agrees to join Bullshit on her journey.