Once there, walk to the big piece of red crystal and touch it with your red crystal orb. After the wall has vanished, climb back up the giant stairs and into an alcove, where you'll find a lever ...

After V and Nero defeat Proto Angelo, Mission 08 - Demon King begins with the two parting ways. This is part of IGN's Devil May Cry 5 Walkthrough and includes Blue Orb Fragments, Secret Missions ...