Akiramezu Ni Tatakao Kitto Saigo Wa Ore Ga Katsu Raw [better]: Yuusha Ni Minna Netoraretakedo

“You’re right,” Kael said to the shade. “I am the one who mapped your fortress. Who designed the trap that severed your heart from your power. And I am the one who will send you back to the void—not with borrowed light, but with my own.”

: The protagonist. Despite losing his status and loved ones, he trains to master his "weak" shield skill for revenge.