Only the current version so far — new entries appear as the app ships updates.
Pigg U (ピグユー)- 好きがあふれる、キャラワールド is an entertainment app by CyberAgent Inc. with 10,000+ downloads (about 38K estimated). +74 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “Pigg's new service arrives in a 3D space! Fashion, spaces, and communities—this is a place where you can gather based on your "likes."”