My Answer

...

I. fly to her like a bird

II. rush towards her like a boar

III. walk steadily and quietly to her, like a human does

IV. IO

there is essentially no option to choose, my answer is the same as what I gave at the beginning.

I surrender.

I = II = III= IV = IO

Not even "You are the only choice", or "this is my destiny".

I don't even remember what happened.

And I have already surpassed my bliss.

This sigil I found will always be surpassing, nothing can stand in its way.

This is the Key of Quicksilver, or Mercury.

As it is in the beginning, so it is at the end, all the rest it has overcome.