Night Watchman-02 once said, "After the Original Apostles established the Black Moon Outpost, the Designer Amon personally created and, together with the Apostles, forged many extraordinary creations. Among them, the Time Compass, the Holy Hall, and the Netherworld Light were respectively entrusted to '01,' himself, and '03,' to stabilize the layers of the Art Building and prevent the power of the Grey Mist from permeating into the real world..."
Many years later, there were successive inheritances of the Night Watchman role, but according to the legacy, even up until the time of the "Dark Chaos," there were still three Night Watchmen guarding the layers of the Art Building—then one perished in battle.
Night Watchman-02 commanded the Bell Tower, wielding the Quantum Giant Clock "Holy Hall";
Night Watchman-03 presided over the cliffs, holding the Ancient Lamp "Netherworld Light";
So the one who perished must be Night Watchman-01, the bearer of the "Time Compass"!
