what is this bug on the unrated demon list

so apparently, i clicked Lesopowal by accident and then clicked to Aquamarine and this randomly happened

https://preview.redd.it/5nec3nfg2o0h1.png?width=1867&format=png&auto=webp&s=aee20bf58824f8747a7ec897e1ad3ed616c8e3b3