Based on online research and available data, here are a few possible connections and speculations:
Using an academic setting ("Gakuen") adds a layer of forbidden nature to the events, as schools are traditionally places of strict order and mentorship. The Role of ID-2 and Digital Distribution
However, the "Tournament" and "Piccolo Daimao" arcs shifted the genre towards martial arts fantasy. This shift necessitated a change in antagonists. Unlike the minor comic-relief villains encountered in early adventures (such as anthropomorphic bandits or local threats), the antagonists became existential threats. This escalation forced the protagonist to evolve from a wandering adventurer into a guardian of Earth.
Based on online research and available data, here are a few possible connections and speculations:
Using an academic setting ("Gakuen") adds a layer of forbidden nature to the events, as schools are traditionally places of strict order and mentorship. The Role of ID-2 and Digital Distribution
However, the "Tournament" and "Piccolo Daimao" arcs shifted the genre towards martial arts fantasy. This shift necessitated a change in antagonists. Unlike the minor comic-relief villains encountered in early adventures (such as anthropomorphic bandits or local threats), the antagonists became existential threats. This escalation forced the protagonist to evolve from a wandering adventurer into a guardian of Earth.