He trained Kilik after his temple went down, and later taught him the art of purification so he could purify Soul Edge. For a time, he remained in his hermitage, moving the plot along from time to time (like teaching Mi-na in III).
He returns in V, unaged from his original appearance due to being immortal because he has absorbed the energies of both Soul swords. He encounters Patroklos in Astral Chaos as he is trapped there when Elysium takes full control of his body, rewinding time for him so he can rectify his mistake of killing Pyrrha. When Patroklos refuses Elysium's order the second time, he is sent back into Astral Chaos and Edge Master teaches him how to implant his own will into Soul Calibur, freeing him from the imprisonment in Astral Chaos.The artbook reveals that the reason Edge Master is in Astral Chaos is to fight Algol, who has secretly been corrupting the world's energies from behind the scenes in the hopes of conquering it while everyone else is in disarray.