3-pun Instant no Chinmoku  

The Silence of the 3 minutes instant, 3分インスタントの沈黙

Toujou Aki and Saku are siblings with a significant age gap. While Saku attends university, Aki lives with him. Despite their differences, they share a strong bond. However, Saku has developed a habit of going out with multiple women at once, which has earned him the title of a "man-whore." Conversely, Aki harbors deep animosity towards women and finds it difficult to be around them. His unwavering loyalty to his brother is one of his closely guarded secrets. However, their relationship can take an unexpected turn in the blink of an eye during a three-minute silence.