
Ruruka Kouno 河野るる香
Itsumi's best friend. She is an otaku, and she is genuinely in love with Itsumi, even without the love potion. She's an even bigger scumbag than Itsumi, and she's not afraid to sell Itsumi out if she thinks she's in trouble; she values self-preservation over love.
Cosplaying and dressing up her friends are two of her hobbies.