Natsuhi Ushiromiya

Background
Natsuhi is descended from a line of Shinto priests, who arranged for her to marry into the Ushiromiya family. From a young age, Natsuhi was trained to be a "good wife". She is frequently antagonized by Eva Ushiromiya due to her relationship with Krass, the successor of the Ushiromiya family. For some time after marrying Krauss, the pair struggled to conceive. In the miracle fragment, this led to Natsuhi adopting Lion Ushiromiya. However, in every other fragment, Natsuhi rejects Lion, resulting in the accidental cliff incident. Regardless, Natsuhi later gives birth to Jessica Ushiromiya.

Appearance
Natsuhi appears as a voluptuous woman with fair skin and brown eyes. She wears a purple dress and green earrings. Her hair appears as two different shades of brown. Because she married into the Ushiromiya family, Natsuhi is not allowed to wear the One-Winged Eagle on her person.

Personality
Natsuhi is a very strict and serious woman who has been described as "stiff" by multiple characters. However, she hides a surprisingly short temper and tends to shout quite a bit. She is also very loyal and responsible, and tends to bottle up her feelings and write them down in her diaries so that she will forget about them rather than express herself.

Legend of the Golden Witch
Natsuhi Ushiromiya is introduced in this arc as Krauss Ushiromiya's wife. She is shown to be a rather prideful woman with a short temper, keen on being the perfect host for the extended family who are visiting the annual family conference. She is also said to have a tendency for stress-induced headaches. Eva humiliates Natsuhi as a "borrowed womb for bearing a successor" and states she has no right to speak about financial matters. This distresses Natsuhi who leaves the room in tears as the conflict between Eva and Natsuhi is introduced by Kumasawa. After the witch's letter arrives, a disbelieving Natsuhi is shown a golden ingot by Krauss in secrecy in order to convince her the legend of Kinzo's gold was indeed the truth. Later, she retires to her room for the night and receives a scorpion charm from her daughter Jessica (herself given the charm by Maria Ushiromiya), which Natsuhi binds to her room's doorknob before she goes to bed.

After waking up, Natsuhi discovers her room's door covered in bloody hand prints with the charm intact. She dismisses it as a prank, but is later shocked and pained when she is summoned to the site of the first set of murders and tries to keep the children away from there. After they realize Kinzo is also missing from his study, Natsuhi brings a rifle with her from his collection in order to use as self defense. Eva suspects Natsuhi for Kinzo's disappearance but Battler defends her.

After Eva, Hideyoshi, Kinzo and [anon's corpses are discovered, the remaining survivors barricade themselves in Kinzo's study. A letter from Beatrice appears, causing Natsuhi to suspect the servants and Maria, who are then expelled from the study. After the three servants were found dead in the parlor, Natsuhi is seen leaving, reading a letter of challenge issued to her from Beatrice. A gunshot is heard and the cousins find Natsuhi dead and crumpled on the floor.

Turn of the Golden Witch
In this chapter, the unexpected arrival of the guest Beatrice has the siblings hounding Natsuhi and her husband, only to discover they hadn't invited her. That night, she gathers along with the other family members in the chapel and they all acknowledge Beatrice's existence. The next morning, she and the other siblings are discovered in the chapel as sacrifices for the first twilight, unconscious with their stomachs ripped open and stuffed with candy. Later, George, Gohda, and Shannon revisit her corpse in the chapel to obtain the key to her room and use her spirit mirror in order to defend themselves against the witch.

Banquet of the Golden Witch
Natsuhi plays a very minor role in this chapter. She tries to be involved as the other family members solve the epitaph, but she is unable to be of any help and only stands around listening and remarking in confusion. She and Krauss are eventually killed by the Chiester Sisters on the order of EVA-Beatrice, soon after Eva Ushiromiya leaves the room to wash her face and make some coffee. Their corpses are later discovered in the arbor by the rose garden.

Alliance of the Golden Witch
Natsuhi again doesn't play any significant role in this chapter. After the siblings confront her and Krauss on whether Kinzo was dead or alive, they are all confronted by Kinzo himself in the dining hall, where he summons Ronove, Gaap and the Chiester Sisters, announcing his ceremony to revive Beatrice. Natsuhi is killed as one of the very first sacrifices for the first twilight and is only mentioned afterwards as Battler is surveying her corpse in the aftermath.

Trivia

 * Natsuhi's character design was originally meant for Beatrice, however this was changed during production.