After Everyone Else Had Already Left The Nest, I Spent My Days With My Stepmom, Luxuriating In Lust ... Yuka Mizuno

Born as the second of three brothers, Yuzuki. His mother Yuka thought of him as an easy child to raise... But one spring, his older brother got a job and started living alone, and his younger brother entered a boarding school. With his father on a solo work assignment, life changed rapidly, and Yuzuki and Yuka began living alone together as mother and son. The once lively house suddenly fell silent, and Yuka felt a sense of loss... Seeing his mother like this, Yuzuki felt frustration and emptiness, and sought to reclaim the maternal affection he had never been able to monopolize...