Why Does C-Kei's Me Have a Fairy Round Table?

I transmigrated into a bunch of scumbags, and I accepted it.

I became Caster Artoria, and I accepted that too.

I was going to die, and I accepted that too.

Because once I finished all of this, I could go home.

And later, I finally escaped back to my own world. I was home.

But when I saw the Fairy Round Table, one of my Noble Phantasms, I fell into deep thought.

"Should I go back?"