Shika Kagura

Shika Kagura possesses the "Reaper’s Curse" that will bring misfortune to everyone around her. She became Okubo Yoshiaki’s temporary Spirit-branded retainer and ended up dying. Seiji saved her, and she became Seiji’s adopted sister.

Appearance
The girl in the middle school uniform was petite yet full-figured. She had an exquisite face with no blemishes and snow-white tender skin. Her hair was jet-black and silky-smooth with cute bangs hanging down on both sides. Her eyebrows were thin and elegant, and her nose was small and delicate. Her large and clear eyes sparkled with a soft light, and her luscious lips were the color of cherry flowers… As she stood there shyly with a poetry book in her hand, her beauty was indescribable.

Personality
At the beginning of the story she has a closed personality since she has the "Reaper's Curse" which only brings misfortune to the people around her and even more to those who try to hurt her.

History
In high school because of their beauty they all wanted to be their friends but with their cold attitude I take them all away, until they started to harass her, but each one of the stalkers ended up suffering a "divine punishment".

After the Amami incident, she is involved in a conspiracy against Natsuya Yoruhana where she ends up with amnesia and sees Seiji as her older brother. After a few days Seiji enters his soul with the help of Natsuya and releases his memories of the spell of the enemy Master Yin Yang. Upon awakening Olvido all the time he spent with Seiji and Seiji decided to just say it when he saw how important Shika was to him, but when he arrived she had already remembered everything.

After the Battle of Souls of Seiji (which I win by invoking several Noble Phantasm starting with the "Gate of Babylon") even though he has a wounded soul thanks to the Shika effect he did not suffer damage.

Then Seiji takes Shika as his sister and they move together bringing their relationship closer and they care a lot about each other.

They started writing novels together (about incest) which was a success since it has the same unique script as Monogatari Series, the novel is called Brother Monogatari.

Shika gets jealous when another girl wants to take her brother away from her even though she does not show it. She even intervenes in her appointments with the use of pawns (Chiaki and Mika) for her to stay at home and for her brother to come back sooner.

Shika is the woman who loves Seiji the most and even her character card has many abilities which makes it ultra rare compared to Amami's

Item
Owns one of the series of cursed swords muramasa. Given by Yui Haruta