From V Jump (or more specifically, yu-gi-oh.jp). We’ll keep you informed for further news from this issue of V Jump as it becomes available.

The 4th Campaign is “Special Protector Volume 1”!

It starts May 12th, 2018!

The campaign is every 1,000 Yen you pay, you gain a single “Special Protector Volume 1” set of 10 sleeves of either “Blue-Eyes White Dragon”, “Blue-Eyes Alternative White Dragon” or “Enemy Controller.” (You can only get 10 sets of sleeves in one purchase. These sleeves will not be restocked, i.e. while supplies last)

Source