Suiseiseki is depicted in her signature moss-green dress with lace trim and a white apron, captured in a graceful standing pose. The sculpt highlights her long, teal-green hair styled into neat twin braids tied with light ribbons, and a delicate bonnet perched atop her head. Her porcelain-like skin and soft expression give her a doll-like presence, with large eyes and a faint, wistful smile. The costume layers cascade with intricate ruffles and a hint of march-mint color under subtle shading, while tiny floral motifs and embroidery on the apron emphasize the garden theme. She stands on an ornate base that echoes Rozen motifs, completing the timeless, botanical aesthetic.

Suiseiseki is one of Rozen's living dolls, crafted with meticulous care and bound by a delicate oath to maintain harmony in her depicted world. In the Rozen Maiden series, she embodies a gardener's spirit, tending plants and speaking in a courteous, old-fashioned tone. She often sides with her sister or faces misunderstanding from the other dolls, while seeking to prove her strength and loyalty through quiet acts of care. Raised in a house where roses and rituals intertwine, Suiseiseki gradually learns about friendships, rivalry, and the true meaning of being 'one of the chosen dolls' in the Rosenkrieg, fighting for recognition from Rozen and for the right to become a complete, cherished daughter of Rozen.