This image makes me heartbroken in a way, cause this cherry tree seems to be surounded in Yuyuko's familiar spirit cluster. And the outfit Youmu wears makes me she's continuing watching over Hakugokuro even after Yuyuko "died" by possibly resealing Saigyou Ayakashi thus causing it to always bloom.

But, that's what the image portrays to me.

Just another day in the garden.

@Elle
That's a really good analysis. But wasn't Yuyuko's soul already sealed into the tree. How would she be able to reseal herself when she has already been sealed off and she exists as a ghost incarnate?

That's way too much speculation and "what-ifs" to really evoke any emotional response whatsoever.

@BluRay:

By possessing Saigyou Akayashi to ensure it stays tame.