An hour later, both were standing in Credo's world since he had agreed happily. Hearing Clifford's words, Credo offered to teach him how to contain his will instead of just sparring. Clifford readily accepted the offer.
"Come out," Credo muttered softly, summoning his inferno reaper, with which Clifford was familiar. Commanding the reaper to pressure Clifford as before, Credo waited to see his will's reaction. However, things didn't go as intended since the pressure didn't have as much effect as before, preventing the will's appearance because Clifford didn't enter the necessary state. Giving up, Credo unsummoned his will and decided to give Clifford what he needed: a serious fight.
To avoid causing any harm to his soul, Credo dispelled his world and took Clifford to a special room where they could fight without disturbing anyone else in the academy.