User blog comment:Ragnarok6354/μ's 6th Single/@comment-6021376-20131001121149/@comment-11148831-20131001142229

Well, it's Lantis.. xD

And I think there are more contents inside the box if you buy the Blu-Ray, like the 3rd Anniversary Live, the first series in Blu-Ray quality, some artworks and such. That price is for the Blu-Ray Ultra Luxury Limited Edition btw. There're also others. 4500 yen for the Blu-Ray Limited Edition and 2000 yen for the DVD Normal Edition.