Overview
Yume 3kki ("Yoake from Yume 3kki") is a rather obscure fangame produced by Rakugaki Studio (らくがきスタジオ)and coolstep. It stars Otetsuki (おてつき), a young girl.
It seems to be the first, and only fangame coded from scratch.
Gameplay
The controls are quite a bit different than most games, due to the scratch engine. The overall mechanics of the game stay pretty traditional in terms of fangames though.
Plot
Little is known about the game or Otetsuki herself, and it is highly unlikely the game is being continued, so the meaning behind her dreams is shrouded in mystery.