Niwasaki Diary (にわさきダイアリ, Niwasaki Daiari) is a diary manga series written and illustrated by Nekotofu. The series has been serialized online since 2020, with chapters being released sporatically between 2020 and 2022. The lead character Anna Niwasaki has since appeared as a background character in several chapters of Onimai: I'm Now Your Sister! as well as it's anime adaptation.
According to Nekotofu, the series takes inspiration from his own life and the challenges he faces while managing his own garden. He created the character of Anna Niwasaki to represent himself as "no one wants to read a manga about a man doing stuff like this."
No chapters have been released since 2022. Even though Nekotofu has given no statement regarding whether the manga can be considered ended, he did mention in April 2024 that he would love to release more chapters but he hasn't had the time to draw them.
