Now that's a pretty meme. Exquisite!

So I oversaw a game between 3 players.

And I think the game is okay! It relies on luck but building a Pichun can happen fast enough, which is a good thing in this game.
I like how even if you get a card stolen, it's not a big setback in general.

I also notice that a game can have the last 2 players have a Pichun in the same turn. You gotta have a player complete Pichun by stealing AND the robbed player complete their Pichun by picking from the deck. It almost happened in front of my eyes, it's just they both were 1 card away lol.
If only it happened I'd be really satisfied to see it end in a double Pichun.

Also I got very peculiar shuffling for this game as the Steal cards somehow came one after another. There were 3 Steals in the same hand when a player refreshed her hand after giving a Pichun lol

Anyway, game gets a 4 in Overall. It is fun and functional enough.

I made a log of the game I oversaw. Whoever can't quite try the game, feel free to consult, I guess.
3 fairies playtest their own game

I noticed the game uses 54 cards, so I tried to re-interpret it with a standard deck of 54 playing cards (including jokers) to make it playable if you have a deck lying around:

• Each player gets 6 cards, not revealed to other players.
• The rest go in the pile in the middle.
• Players take turns. Each player, in each turn:
  • Discard a card of your choice to the bottom of the pile.
  • Draw a card from the top.
  • If you draw an ace or joker:
    • Pick a player. Look at their hand, and steal a card of your choice.
      • They draw a card from the top to replace the stolen card.
  • If you have at least one of each card from the groups 2-3, 4-5, 6-7, 8-9, 10-J, Q-K, they form a pichun: you have the option of pichun-ing someone. Discard those 6 cards and remove a player from the game for 10 rounds. After 10 rounds, they re-enter: both players discard their hands and redraw 6 cards.
  • If you have a pichun with all the same suit, you can perform a "max pichun" and win the game outright.
• If there's only one player active (not pichun-ed) they win.

Explanation: Each suit corresponds to the four fairies (Cirno + three fairies of light). You're supposed to have 8x of each letter in "pichun", 2 of each with the same character on it, which I represented by groups of playing cards: p: 2-3, i: 4-5, c: 6-7, etc.  Having a pichun with all the same suit corresponds to having a pichun with all the same character. The deck is also supposed to have 6 "steal" cards, which I interpreted as aces or jokers. 

Rule clarification: I make the assumption that when you steal, you get to choose the card to steal, and can look at their hand when doing so. Otherwise, stealing isn't advantageous.

I played a round by myself with two players, and it seemed like a decent enough card game. Would probably be much better with 3-4 to make the max pichun a relevant element (with two players a regular pichun is equivalent to a max pichun).