Suddenly transported to an alternate world, recent high school graduate Masato Katasato finds himself in a place where the fundamental gender ratio has shifted to one man for every five women. On the surface, this new world appears only slightly different from his own, with women acting a bit more forward and assertive than he is used to. Believing he can maintain a normal, quiet life if he simply goes with the flow, Masato proceeds to interact with the people around him using the same everyday decency and consideration he would have shown back home. What he fails to realize is that in a world where men are a scarce resource, his ordinary kindness carries extraordinary weight. The women he meets, from university students to high school athletes to coworkers, interpret his gentle actions not as simple politeness but as profound, life-changing gestures. One by one, they begin to develop immensely intense, possessive feelings for him. The story follows Masato's oblivious attempts to live ordinarily as the heroines around him, each with their own desperate backgrounds and emotional baggage, grow increasingly obsessed. The narrative arcs revolve around the central comedy and drama of his well-intentioned but disastrous innocence, as the women's heavy affections escalate from subtle possessiveness to overt attempts to claim him, ultimately leading to confrontations that force Masato to recognize the precarious situation his unintended charm has created. The core conflict is not whether he will win anyone over, but whether he can escape being "made to understand" by the intense, emotionally burdened women who now surround him.