Anytime Diary (いつでも日記 Itsudemo Nikki) is an episode from the Doraemon 1973 anime.
When Doraemon enters into the house from outside hot, Nobita is reading and reading manga books as usual. Doraemon tried to read a diary of Nobita's summer vacation that is near by. It's surprising that writing is much different from the lazy lifestyle of a usual lazy person. Angry Doraemon broke the diary and threw it away. And he took out Honest Diary instead. In this, things that are written, always will occur as it is written.
- Honest Diary