Full Name: Sakuya Izayoi First person: I (polite, formal) A Halloween version of Sakuya Izayoi wearing a white top hat, white satin gloves, and a white suit. During the Scarlet Devil Mansion's Halloween, Sakuya puts her duties as Head Maid on the back burner to entertain everyone. She doesn't actually want to do it, but she goes along with it because Remilia and Flandre enjoy it.

Full Name: Hong Meiling First person: I (casual) Meiling is enthusiastically cosplaying as a Jiangshi. For Halloween, she temporarily stops her duties as gatekeeper and tries to genuinely scare people. She always gets caught up in Flandre's pranks and ends up causing trouble for those around her.

Full Name: Remilia Scarlet First person: I (dignified) Lady Remilia has somehow been made to wear a pudding kigurumi. However, she seems to like it quite a bit and unconsciously radiates cuteness.

Full Name: Flandre Scarlet First person: I (childish) Like Remilia, Flandre has been made to wear a pudding kigurumi. Flan also likes this outfit and unconsciously radiates cuteness.

Full Name: Koakuma (Technically unknown) First person: I (polite) Despite serving vampire mistresses, Koakuma chose a vampire costume for some reason. She seems to be having the most fun because Halloween is the one time she can get away with being reckless toward Patchouli. The fake fangs for her vampire cosplay are coated with a paralytic toxin, making it quite dangerous if she bites you.

Full Name: Patchouli Knowledge First person: I (composed) Patchouli is simply wearing a black version of her usual robes. As always, she is listlessly reading a book. She isn't reading demonic tomes or books of hexes. She is just reading her usual books to gain knowledge.