Mysteria Occult Shadows is a dark fantasy with a bright anime style and girls with animal ears and tails. The game has quite a lot of fan service, because the heroines can fight only in their underwear, but still look menacing and frightening. The choice of game characters and the range of skins for them is quite extensive, so that each player will be able to find their waifu and give her all the best. The action takes place in Surnas, where battles with huge monsters are constantly taking place. In order to eliminate them easily and quickly, military animal squads were formed from people who possess special animal abilities, which gives them a strong advantage in battle. Often they prefer to use melee weapons such as a scythe, sword or spear, because they do not limit their speed and freedom of movement. Playable characters of Mysteria Ocult Shadows:
- Darkness - a black cat, secretive, unsociable, does not like companies, she sees the purpose of her life only in battles
- Chris - an arctic fox, very perceptive, active, seems to know the answer to any question
- Aya - a cat, the oldest among all animals, gets her energy from the darkness
- Shayna - a gray wolf, captain of one of the units, unstoppable in battle
- Barbara - a princess of rabbits, very kind and shy
In addition to these girls, there are many others in the game, which differ in character, appearance and set of abilities. Each of them is voiced by Japanese actresses and can sometimes make animal sounds during battle, such as meowing or barking. It is up to the player to decide who exactly to play as, since this does not affect the storyline.