ruruchan

An oc that's property of Shinsei Kamattechan. She is a fictional character made to represent victims of suicide and to be a menhera character. It's known she was based on Kosame Amagai from Mahou Shoujo Site

Her appeareance is in the video 'Ruru's suicide show on a live stream' which is a song made to spread awareness about suicide and depression on kids.
Shinsei Kamattechan sells merch of her and supports cosplays, so as long as it's in a respectful way, do so.