Yume Shoko (夢書庫)

Overview
Yume Shoko (夢書庫) (lit. Dream Archive) is a Japanese fangame made by Takoyari Ika, who also made Yume Iro. It stars Sudou (スドウ).

Gameplay
You play as Sudou, who in her room has two exits but both lead to inescapable rooms (unless you use the wake up skill in the menu). Interacting with the pink unknown object will allow Sudou to play a minigame (press Shift to exit it), and interacting with the white object will bring her to the nexus.

Along the way to collecting effects, there are also 3 bonus "Omake" effects.