Shiou no Kikan: Moto Yuusha no Ore, Jibun ga Soshiki Shita Chuuni Himitsu Kessha o Tomeru tame ni Futatabi Isekai ni Shoukan Sareteshimau

“How could my past self have been so enthusiastic about such mortifying behavior?” During his third year of middle school, Hizaki Shiou was summoned to another world and successfully defeated the Demon King, only to be forcibly returned to his original life. Three years later, he finds himself summoned back to that same realm, this time tasked with halting the violent rampage of a secret society known as Helheim. To his profound embarrassment, this organization is supposedly the very one he founded during his chuunibyou phase under the grandiose title of the Corpse King—a dark chapter of his youth he would rather forget. It appears someone is impersonating Helheim and tarnishing its legacy. Determined to uncover the truth behind this deception and restore the organization’s honor, the reluctant Corpse King reunites with the Hakkai, his former subordinates who once made Helheim an unrivaled force. Tormented by memories of his cringeworthy past yet driven by duty, he resumes his adventures in the other world. Their first mission leads them to the Steel City of Gagiul, where they must save a famine-stricken populace and aid a pale, distressed countess. With resolve steeled against his own embarrassment, he issues the command: “Helheim, moving out.”