[R-Koga] Nii-chan's Property Afterwards 1 (Nii-chan Senyou) [Shiro Translation]

Yuuki is a fiercely possessive younger sister who considers herself Nii-chan's alone, while her older brother Nii-chan is slowly rebuilding his life after depression with a new job at a nearby supermarket and an invitation to join the manager's amateur baseball team as a former cleanup hitter. Their close, taboo domestic bond is tested by distance, jealousy, and the question of loyalty when work and new friendships keep them apart and a classmate takes an interest in their dynamic. Torn between everyday life on and off the baseball field and the intense, exclusive promise between siblings, the story teases whether devotion can stay undivided when others want to join in.