It seems like you're referring to a very specific topic, possibly related to a blog post or an article about a lesbian-themed content, possibly an anime or manga-related topic given the names and the context.
These tactics turned a project that could have stayed in the indie “shelf” into a best‑seller that cracked the top‑10 of the Oricon weekly novel rankings.
The title itself— DVDS 366 —is a nod to the “Day‑Versus‑Night” storytelling technique used throughout the series. The number 366 symbolizes the leap‑year day, representing a moment that exists outside the ordinary calendar—much like the unconventional love story it houses.