Souta Mizutani, a high school student, is confessed to by Shino Aizawa, also known as the "Frail Beauty." However, there's a twist – there are four Shinos! This happened because Shino accidentally fell into a hole in the ground, causing her to divide into four different versions of herself. While they are all technically the same person, each one represents a different aspect of her personality: courage, embarrassment, and lust.
Souta finds himself in a difficult situation as he now has to navigate a relationship with not one, but four different versions of Shino. His primary focus is the original, but he must also cater to the needs of the others. This series takes us on a cute, comedic, and heartwarming journey as Souta juggles the pressure of having four girlfriends.