What is the Yōkai Pelmanism (card game) game, how does it work?

According to the introduction of Yasukazu Umekita, Yōkai Pelmanism (card game) is a Card game on the Android platform. There is currently a 1.1.1 version released on Apr 26, 2017, you can see the details below.

Let's play with ”Yōkai” us and the Pelmanism (Concentration (game))!
From the face-down card that was placed on the table, the game is to find the ”Yōkai” of the same picture.
You can choose two difficulty to your liking.
You can collection the ”Yōkai” picture book by playing in the game, and try to complete your picture book.
"Yōkai" are a class of supernatural monsters, spirits and demons in Japanese folklore.

What's new in version 1.1.1 - changed the design.
- changed the icon.