Walls – This wall can be demolished, right

I wouldn't trust a random individual on the internet to correctly identify bearing walls. There are general guidelines for identifying bearing walls, but many exceptions to the rules.

Get a competent person in your kitchen to look at the structure. From there, you can figure out the engineering.

Several things suggest that it's not load bearing:

• The fact that it's at the end of a "pony wall". This is likely a horizontal support post that wouldn't be present if not for the wall.
• The wording "to ceiling". This suggests no structural integration with the roof framing or any supporting member.
• The lack of blocking or other load-transfer notes in the floor framing layout.

Some things that would seal the deal:

• Footing layout showing no supporting structure at this location, and...
• Main floor truss diagrams showing no concentrated load below the post.

With what's presented here I can only be about 98% certain. If you want more than that, consult a local professional.