Serenity is a Lorath Matriarchy Helashio slave currently aboard the SRSS Yggdrasill after they found her. She is scared of most new people and doesn't quite understand the need to wear clothing nor the concept of thinking for herself. She spends most of her time aboard the Yggdrasill naked and currently feels that Yuki Toshiro and remi_miyoshi are her master and mistress.

Serenity was played by Tiffany.