The Return of the Corpse KingShiou no Kikan: Moto Yuusha no Ore, Jibun ga Soshiki Shita Chuuni Himitsu Kessha o Tomeru tame ni Futatabi Isekai ni Shoukan Sareteshimau; 屍王の帰還　～元勇者の俺、自分が組織した厨二秘密結社を止めるために再び異世界に召喚されてしまう～; The Return of the Corpse King: I, a Former Hero, Have Been Summoned Back to Isekai to Stop the CHUUNI Secret Society Organized by Me; عودة ملك الجثث; عودة ملك الجثث: أنا، بطل سابق، تم استدعائي مرة أخرى لعالم آخر لإيقاف الجماعة السرية التي أنشأتها سابقاً; Kembalinya Raja Mayat ~Aku, Mantan Pahlawan, Dipanggil Kembali ke Dunia Lain untuk Menghentikan Organisasi Rahasia Halu yang Aku Dirikan Sendiri~; O Retorno do Rei Cadáver; Sự Trở Lại Của Thi Vương; Shiou no Kikan: Moto Yuusha no Ore, Jibun ga Soshiki Shita Chuuni Himitsu Kessha wo Tomeru tame ni Futatabi Isekai ni Shoukan Sareteshimau

"How can my past self get so excited doing all those embarrassing things!?"When he was in the third year of middle school, Hizaki Shiou was summoned to another world to save it. After defeating the Demon King, he was forcibly returned back to the present day. Yet another three years later, he is summoned to the other world once again, this time to stop the rampage of the secret society "Helheim."That organization was supposedly actually the one that he had founded during his *chuunibyou* phase, where he called himself the "Corpse King"a dark past too embarrassing to remember!Someone seems to be impersonating the name of "Helheim" and tarnishing its reputation. To uncover the truth behind this mystery and clear the organization's name, the Corpse King reunites with his former subordinates, the "Hakkai," who once made Helheim the strongest it had ever been. While agonizing over his dark past, he begins to take action in the other world once again.Their first stop is the Steel City of Gagiulrescue the city struggling through famine as well as the pale-looking count's daughter in distress."Helheim, moving out."