Read the original story in numbered gamebook-style sections, choose actions and responses, and follow the resulting branches through the academy-city incident. The format combines prose, character scenes, condition checks, and multiple possible routes rather than real-time combat; the active Japanese build determines the exact choice and event sequence.

Save before a major branch and record the condition or item associated with a route. Read all available choices carefully, revisit earlier decisions when a path ends unexpectedly, and keep a second save because public references note that this title can contain progression-blocking bugs in some versions.