Series update
Boku no Kotori-san update
Update note
Volume 4 continues to follow the daily life of a high school boy and the small, bird-like girl living in his room. As their unusual coexistence persists, the story deepens their quiet bond while introducing new characters who react to the girl’s mysterious presence. The volume balances gentle slice-of-life moments with light-hearted misunderstandings, gradually expanding the world and hinting at future developments.