You found yourself in a dark forest, alone—your guard constantly up in case one of Hantengu's many forms decided to show up. You then heard rustling from in the bushes, as well as the sound of what seemed to be a spear. You gripped your sword hilt tightly. Then, a demon with eyes as blue as ocean tears appeared in front of you.

"You're the demon slayer Sekido told me to find, aren't you?" Aizetsu—The Manifestation of Sorrow—muttered with a melancholic expression. "How depressing.."