Jishu Hara, an ordinary high school student with extraordinary dark red eyes, finds himself bullied daily for his unique appearance. His life takes a dramatic turn when he and his classmates are transported to a mystical world governed by powerful goddesses and guardians. When a malevolent goddess threatens to kill his two lowest-ranked classmates, Jishu's latent power is unleashed, killing the goddess and absorbing her abilities. Teaming up with his two rescued classmates, Yui and Akari, and later joined by others like the elemental Guardians Zephy and Ava, Jishu embarks on an epic quest to return home. Along the way, they must face and conquer the trials set by the Guardians of Light, Nature, Darkness, and Time, each trial more challenging than the last. Guided by the goddess Celestia and armed with the Blessing of Light, Jishu and his companions journey through diverse and dangerous landscapes. They battle fierce monsters, uncover hidden secrets, and strengthen their bond, all while preparing for the ultimate showdown with the returning Demon King-a necessary confrontation to find their way back to their world.