...heh.

And what then?

You nearly collapsed after leaving your chilly lake, right?

"She wanted to see Letty so badly that she pushed herself too much and died." That wouldn't even go for a joke.

It won't do if either fairies or youkai disappear.

And that goes not only for supernatural beings. All life in Gensokyo bases itself on mutually coexisting beings.

If you were to disappear, Letty wouldn't be able to live either.

It wouldn't be appreciated if balance in Gensokyo crumbled because of just one selfish fairy.