Cat-nyanception...

We heard you like catgirls so we put some nekomata in your Seiga so you could Nyan-nyan while you Nyan-nyan.

It's like Touhou meets moetron.

Nihao nyan~

Adding to the Clever pool.

Seiga Kaku is also known as Seiga Nyan Nyan (or Seiga Niang Niang). I think you can figure out the rest.