In archive naming conventions, "Bi" can denote a few different things depending on the sourcing group. Most commonly, it stands for "Bilingual" (containing both the original Japanese text and an English translation layer) or it refers to a specific digital release variant, such as a high-resolution "Big" edition sourced from official e-book platforms rather than physical magazine scans.
The comic experiments with for the first time. “Ssshh…” in the Bazaar, “Clack!” when Maya manipulates the Memory Quill—these small touches add an immersive, tactile feel. COMIC LOE VOL.2 Bi.rar