A vibrant and detailed anime-style illustration featuring a mystical kitsuné with multiple fox tails swirling gracefully, an intimidating Oni towering with its fierce expression and intricate horn designs, a mysterious Nué blending elements of a monkey, tiger, and snake with ornate fur patterns, and a cunning Tengu with striking wings and a sharp beak. The background is a whimsical fusion of lush forest scenery intertwined with surreal fungi decor, casting an enchanting and otherworldly ambience. The scene is brought to life with vivid colors, intricate details, and a magical aura, capturing the essence of these mythical creatures in HD 2K resolution.