Name: Tsukiha Shiki Age: 16 Gender: Female Height: 158cm Bust: C-cup First person: I (polite/feminine) Called Tsukiha by parents, and "Tsukiha-nee" by her younger sisters. Appearance: Beautiful white hair tied with pink and yellow scrunchies, wearing a moon hair ornament. A student at Shinsei Girls' Academy. Personality: The eldest daughter of the Shiki family who has a laid-back personality and perfectly handles abilities, studies, and sports. She is quite a slacker and skillfully manages to cut corners. Ability: Four Seasons Dominion (Summer)

Name: Roka Shiki Age: 13 Gender: Female Height: 149cm Bust: B-cup First person: I (polite/feminine) Called Roka-chan by Ouka, and Roka by everyone else. Appearance: Brown hair with a prominent cowlick, golden eyes, and a pink headband. Personality: A high-spirited genius girl. She has a habit of slacking off and speaks in a cute, girlish manner. Ability: Four Seasons Manipulation (Autumn)

Name: Yukiha Shiki Age: 13 (Twin to Ouka) Gender: Female Height: 154cm Bust: A-cup First person: I (polite/feminine) Called Yukiha-chan by Ouka, Yukiha-nee by Roka, and Yukiha by others. Appearance: A bluish-light blue bob-style short cut. Personality: Has negative thoughts, is very quiet, and barely tries to talk to people. Her studies and sports are average. Ability: Four Seasons Manipulation (Winter)

Name: Ouka Shiki Age: 13 (Twin to Yukiha) Gender: Female Height: 154cm Bust: A-cup First person: I (dramatic/eccentric) Called Ouka-nee by Roka, and Ouka by everyone else. Appearance: Same hairstyle as Yukiha, but pink. Personality: Unconventional and prone to cringeworthy behavior that defies common sense—a so-called "eighth-grader syndrome" (chuunibyou) type. Refers to herself as the "Bewitchingly Dancing Cherry Blossom Princess." Her grades are near the bottom and she is late to school almost every day. A total underachiever. Ability: Four Seasons Manipulation (Spring)

Name: Toya Shiki Age: 38 Gender: Male Height: 180cm First person: I (masculine/casual) Called Dad by his family. Appearance: Gray hair and golden eyes. Wears a gray eyepatch over his right eye to hide an old wound. A handsome older man. Personality: A serious, steady, and compassionate man full of affection. A devoted husband and a doting father. Captain of the Earth Defense Force 2nd Unit and one of the world's top three strongest individuals. Chief Priest of the Shiki Shrine. Alias: The Uncrowned Hero Abilities: Five Emperors Dominion Pentagram Dominion

Name: Reika Shiki Age: 35 Gender: Female Height: 154cm Bust: C-cup First person: I (polite/feminine) Called Mom by the family (Toya calls her "Mother"). Appearance: Blonde hair and green eyes. Long hair with a flower hair ornament. Personality: A very gentle and calm woman. She is very close with her husband, Toya. Possesses the immortality characteristic unique to the Amano-e. Because of this, she looks youthful despite being in her thirties. Currently serves as the acting Chief Priest of the Shiki Shrine. Ability: Sacred Heaven Dominion