ROE-424 After all the family members have left the nest, spending incestuous days with my mother at the old family home... Tsukushi Sae.

Kenji was born as the second son of three brothers. From his mother Sae's perspective, he seemed like a child who didn't require much attention... One spring, his older brother got a job and started living alone, while his younger brother enrolled in a boarding school. His father went on a business trip alone, and life became hectic. Kenji and his mother Sae began living together as a two-person household. The once lively home suddenly fell silent, and Sae felt a sense of loss… Seeing his mother like this, Kenji felt bitterness and emptiness about her concern for his siblings only, trying to monopolize his mother's affection.