Controls - [Spacebar] to jump.
And yes, if they say you must work harder - that means you have to press [Spacebar] several times to jump. Thanks for your patience.
And yes. Reading whole bunch of text is essential for this game.
There's three endings in the game:
1) Submissive ending ("I regret nothing")
2) Martyr ending ("failed to find the meaning", SPOILER)
3) Rebel ending ("forever free", SPOILER)
Don't miss hidden character!!
There doesn't seem to be anything here.