E Nikki (えにっき)

Overview
E Nikki (えにっき, Picture Diary) is a Yume Nikki fangame by Sharp. The game stars a young boy named Hazuki (葉月) who like most fangames protagonists is unable to leave his room, appearing to be locked in.

Plot
Hazuki's dreams are rather light-hearted, with motifs hinting that he may be a young child. This is represented by simple math questions with one-digit numbers by or doodle-like scrolling background with many fruits on it. According to Hazuki's description in the game, he actually is a child.

Gameplay
You enter the dream world through Hazuki's bed and save your game through his desk. What makes this game different from most fangames is that you don't start from the Nexus and explore the main worlds. Rather than that the player starts from a random main world, and is forced to find a leaf to take them to the Nexus. The location is then linked to the leaf permanently, so you can visit it later.