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Synopsis

Iroe Genma, a compact third-year student nicknamed “Elder Sister,” heads her high school’s Model Club, a group focused on crafting plastic replicas of vehicles, ships, and mechanized figures. Alongside her are two younger members: the hotheaded Hazuki Okamoto, known for her aggressive streak, and the sensible Makina Sakamaki. Tasked with club responsibilities, the trio frequently veers off course as interpersonal clashes, playful confrontations, and everyday adolescent dilemmas—like navigating how to confess affection—pull them into a series of zany and exaggerated schooltime episodes. The series blends model-building activities with humorous, fast-paced interactions among the three girls, balancing chaotic antics and lighthearted camaraderie without revealing key plot outcomes.