Released on February 13, 2024 , the title translates to a theme involving a "helpless" or "defenceless" sister-like figure across a window who shares a mischievous smile with the viewer.

In the context of Japanese media, is a production code used by the studio S1 NO. 1 STYLE .

Genuine original remotes can be found on specialist sites like Remote Control World .

Most versions do not require complicated programming; they sync automatically once batteries (typically 2 x AAA) are inserted.

The title was made available in both DVD and Blu-ray formats under the catalog numbers SONE-054 and 9SONE-054 , respectively.