Return of the Corpse King: Reining in My Cringe Secret Society

Three years ago, Hizaki Shio lived every otaku's dream: summoned to a fantasy realm, he defeated the Demon King and returned home a hero. Now a high school student in modern-day Japan, those epic adventures feel like a distant memory, faded beneath the weight of exams and teenage routine. Just as he resigns himself to an ordinary life, the summoning circle blazes to life once more, dragging him back into a world on the brink of chaos. His new mission: dismantle the fearsome Secret Society, Helheim, before it plunges the kingdom into darkness. There's just one humiliating catch. Shio is the founder of Helheim. He created it during a mortifyingly edgy phase, adopting the moniker "Corpse King" and laying the groundwork for what has now become a genuine threat. The cringe of his past is almost unbearable, but the reality is far worse—someone else has taken up his mantle, corrupted his original vision, and transformed his teenage folly into a real power. With his secret identity a ticking time bomb and the weight of his past mistakes on his shoulders, Shio must infiltrate the ranks of his own creation, starting with a perilous mission to the Steel City of Gaghiel to rescue a noble heiress.