Name: Seika(short for 'Seikatsu', which means life), Sei(nickname given by Sora and Riku).

Age: 14

Appearance: Brown hair that stops at her waist, ocean blue eyes, peach skin, thin.

Relations: Sophie(mother), Connor(father), Sora(fraternal twin brother).

Home World: Destiny Islands

Outfit(as a child): A white T-shirt with seafoam colored accents and a fuchsia heart randomly placed on the top. It is worn with a blue and purple pleate skirt and a bright yellow jacket with a single, colorful badged placed on it. It comes with a simple necklace with a red charm, and a pink and orange themed bracelet. Burnt orange slip-on shoes with black coloring underneath and pink laces. Comes with a pair of tall white socks with stripes of blue and pink on top, and a yellow cloth tied around the ankle (Look at Aikatsu; Miracle Casual Coord).

As a teenager: A dress worn beneath a light blue blouse-styled jacket. A row of gold buttons goes up and down the left hand side, while on each side of the torso at the stomach is a small pink bow. The cuffs are lighter blue straps with a single gold clip and a row of white ruffles. The dress is composed of a white lace top and a very pale yellow belt with a silver clasp. The skirt is a two-layer ruffle of pale yellow with various lemons and lemon wedges all over it. Each layer has a row of white tulle lining the hem, and on each hip rests a white and blue striped bow. Beneath the main portion of skirt is a white pleated skirt. Pale brown cork-wedge sandals with mint material covering the foot and heel, each with stripes of melon and a row of white pearls. On top of the foot is a lemon slice with a pink bow on top of it. Comes with pale yellow socks with pale gold floral designs all over it. On top of each sock are two white pieces of ruffled material(Look at Aikatsu; Cute Lemonade Coord).

History: Seika use to be a very happy girl and was close to Sora, Riku and Kairi. However, when they are 12, Sora tells Seika about the plan to make a raft to travel to other worlds. Seika becomes angry, believing her brother is abandoning her, and yells at him. When Sora tried to calm her down, she slaps him across the face and declares that they are no longer siblings. She also ends her friendship with Riku and Kairi. Later that night, Seika regrets the fight and begins to head for home when she is struck by a drunk driver. A bystander sees the accident and rushes Seika to the hospital. She survives, but shards of glass had punctured throat and left her mute.