As for the limited-time donut, it's a French cruller donut that is commonly found at Mister Donut, but the hole is filled with strawberry whipped cream, atop which sits a white chocolate made to look like the French Wooler's head. The price tag per donut is 189 yen or about $2.37 U.S.
But even if you're in Japan, according to Rocket News 24, the donut is only available at a single Mister Donut location (Pon De Lion Park) in Tokyo (at the "Soramachi" Tokyo Sky Tree Town shopping center).
If you're wondering how the rest of the "sweet friends" look, here you go:
The same location also offers a Pon De Lion donut:
It's made with mochi rice flour for a different texture.