First, one must understand the context of "v0.15." In the world of continuous development, version numbers are a covenant between the creator and the community. Version 0.15 of The Headmaster is often cited by players as the "great consolidation"—the point where the core mechanics of discipline, scheduling, and character loyalty were finalized before the expansion of later arcs. Unlike later versions that introduced sandbox elements, v0.15 is prized for its rigid logic. Consequently, the "BEST" walkthrough for this specific version is less about finding secrets and more about solving a deterministic puzzle. The guide deconstructs the game’s internal economy: how many "Correction Points" are earned per lecture, which dialogue options unlock the Staff Room without triggering a game-over, and the precise sequence of weekend events required to raise a student’s "Respect" stat above 80% before the mid-term audit.