Plastic Neesan

Iroe Genma is a third-year high school student who's often called "Elder Sister" despite her short stature. As the president of the Model Club, she leads her club members, Hazuki Okamoto and Makina Sakamaki, in building plastic models of various objects. The club's activities are frequently disrupted by infighting, romantic entanglements, and other distractions, leading to a series of chaotic and comedic misadventures.