Kuragehime: Eiyuu Retsuden☆  

Princess Jellyfish Specials, Kuragehime Heroes☆, Kuragehime Specials, 海月姫 英雄列伝☆

The Blu-ray and DVD releases of Kuragehime include brief episodes that have been adapted from the side story "Heroes☆". Additionally, there is a serialized manga version of this spin-off called "Kiss Plus" which features supporting characters in short chapters.