Marin Kitagawa is captured here with her signature long, flowing hair and bright, expressive eyes. The sculpt reflects her energetic personality through a dynamic pose and attention to detail in the clothing and textures. Her long, glossy hair is sculpted with layered strands that cascade down her shoulders, catching light and showing subtle movement. Her eyes are large and lively, framed by carefully painted lashes and a hint of pink on the cheeks. Marin wears a carefully rendered outfit with intricate fabric folds and accessory details that reflect her cosplay-inspired style from Sono Bisque Doll wa Koi o Suru. The base integrates thematic elements from the series scene, providing stability while enhancing the character's personality and charm. Texturing on the clothing conveys fabric weight and motion, while subtle shading adds depth to the overall presentation.

Kitagawa Marin is a spirited high school girl whose boundless enthusiasm for cosplay drives the heart of Sono Bisque Doll wa Koi o Suru. She wears confidence like a shield and approaches others with warmth and honesty. Marin befriends Wakana Gojo, a quiet classmate who shares a talent for sculpting dolls, and she convincingly asks him to help bring her favorite characters to life. Through their collaboration, she reveals a deep dedication to fashion, character accuracy, and storytelling, while teaching Gojo to trust his own artistic voice. Her zest often pulls others out of their shells, and her evolving relationship with Gojo anchors the series' emotional core.