Origin
Japan
The Unhinged Fan is an antagonist that appears in Season 3 of the Netflix Original Series Aggretsuko. The Unhinged Fan is a tall, hunched llama with brown fur. His hair sweeps across his forehead over his beady eyes, and his mouth is usually covered by a black mask. He sports a green jacket with a limited edition OTM Girls patch, which he was able to acquire as a long-time fan of the band. He was once a dedicated fan of the OTM Girls. Nevertheless, his inability to accept changes has morphed him into a deranged person, going far lengths to assault Retsuko, whom he openly despises and vents at for changing OTM Girls. He is first seen as an OTM Girls superfan who stalks the girls and Retsuko, posting their pictures online on a fake OTM Girls social media profile. It is later revealed that, in addition to being an obsessive stalker, he verbally and physically attacks Retsuko. His assault with a box cutter was stopped by Haida, and he is currently in jail for the attempted attack.
Aggretsuko
Some offices have stereotypical dynamics: the chauvinistic pig of a boss who never does any real work; the employees whose goal is to suck up to the boss; the ones whose lives seem perfect; and the individuals who have all the actual work pushed onto them. Retsuko the red panda is in the last group, as she stays late most nights to make up the work her coworkers are too lazy to do themselves. Her relief from the stress of her everyday life comes in the form of singing death metal at a local karaoke club. Night after night, Retsuko channels her grief into a microphone and considers the place to be her own personal sanctuary. But as she moves further away from her comfort zone and the ideas people have of her, she discovers that letting others into her world of death metal may not be such a bad thing.