Designed by Yoshihiro Saimaru, MARUYA, Takashi Tanibayashi, and Toyhouse Co., Ltd., the Little Devil Twin Tails figure presents a playful blend of charm and mischief. The calm pink twin-tail hairstyle is the centerpiece, with newly sculpted bangs and interchangeable bang parts—Standard, Glasses-Compatible, and 3mm Connector Type—allowing varied scenes from innocent to dramatic. The back hair mirrors the twin tails of Madoka Yuki, ensuring a cohesive visual language within Sousai Shoujo Teien. The model uses the Yomi body, featuring a wristwatch and choker as eye-catching accessories, a left shoulder raised torso for dynamic reach poses, and sitting legs for relaxed stances. Three skirt options—Regular, flowing, and sitting—plus the school bag, smartphone, and display base add narrative richness. The set includes eight distinct hand poses and a versatile neck adapter system for cross-compatibility with other frames.

Within the Sousai Shoujo Teien spin-off, this is the second entry, introducing a mischievous Little Devil Twin Tails that loves teasing and playful banter. Her eye designs by En Morikura—Teasing, Arrogant, Condescending—invite fans to craft unique expressions and moods, while the option to use both pre-painted and unpainted face parts opens endless customization and storytelling. The character's light skin tone (Skin Color C) integrates with a broad range of outfits from other series, enabling cross-collection storytelling. With a school bag and smartphone as everyday accessories, she can pose standing or sitting in ways that hint at mischief, curiosity, and a hint of defiance, ready to spark scenes across the Sousai gallery and beyond.