Mary Skelter 2 for PS4 announcement seemingly leaked, includes Mary Skelter: Nightmares remake [Update]

Dummy packaging surfaces.

Mary Skelter 2 is in development for PlayStation 4 and will launch on June 28 in Japan for 7,776 yen, if dummy packaging (which is used to promote games at retailers) that surfaced on 2ch.net is to be believed.

According to the packaging, a 10,476 yen limited edition will also be available and include a Kei Nanameda-illustrated special box, 21-song original soundtrack CD, special book, bath poster, multi-desktop calendar, treasured data materials CD-ROM, and PC and smartphone wallpapers CD-ROM.

Pre-orders are said to include a product code to download a visual novel called Rengokuto Mary Skelter (Love Prison Tower Mary Skelter—in Japanese, Mary Skelter is fully titled Kangokutou Mary Skelter, or Divine Prison Tower Mary Skelter).

Here is an overview of the game’s story:

Jail—an impregnable human asylum called a “living prison.”
This prison, which was suddenly born several decades ago, was controlled by monsters called “Marchens” and mad beings that led them called “Nightmares.”

Tsuu and The Little Mermaid, members of an organization called “Dawn” whose purpose is to escape from that Jail, successfully rescue new ally Alice, who was captured, and a boy named Jack, who she was with.
Tsuu headed to the city with Alice and Jack, but in the midst of that, Alice’s body was dyed in madness and started swinging her blade indiscriminately.
Alice’s blade attacked Tsuu, the Little Mermaid, and Jack, who tried to protect Tsuu, and the three fell down below a cliff.
Before the eyes of the princess who woke up below the cliff was Jack, who was seemingly about to die—.
Tsuu, The Little Mermaid, and Jack—this is the story of girls that spin blood and a boy that became a nightmare in attempts to break free from fate.

Mary Skelter 2 will also seemingly include a completely remade version of the original Mary Skelter: Nightmares with updated balancing and maps.

Thanks, @Renka_Schedule.

Update 5:58 a.m.: Compile Heart seems to have acknowledged the leak in a tweet.