Yuuji, the second son of a family of three brothers, was perceived by his mother, Saki, as quiet and introspective. However, one spring, his older brother started working and living alone, while his younger brother entered a boarding school. With his father away on a solo business trip, their lives took a sudden turn, leaving Yuuji and Saki to live together. As the once lively house fell silent, Saki felt a sense of loss... Witnessing his mother's state, Yuuji felt a mix of resentment and emptiness, realizing that she was solely focused on her sons. He decided to take all of her love for himself...