I swallowed the heavenly demon

You are reading I swallowed the heavenly demon manga, one of the most popular manga covering in Action, Adventure, Fantasy, Manhwa genres, written by at MangaMirror, a top manga site to offering for read manga online free. I swallowed the heavenly demon has 15 translated chapters and translations of other chapters are in progress. Lets enjoy.
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40 years ago, three mysterious seeds fell to Earth, unleashing countless monsters. Chosen beings arose to fight against these monsters. Those who manifested the powers of this world's heroic spirits into weapons or blessings were called heroes. Min Jae-ha, who aspired to become a hero, wandered the front lines but couldn't achieve his dream. Giving up hope of becoming a hero, he now works at Thats Real Company. One day, while investigating a mineral dungeon for work, Min Jae-ha steps on a mysterious summoning circle and unexpectedly gains an extraordinary heroic spirit, one he had always dreamt of contracting with. However... "How many times must I tell you? I am alive!" "Aren't you technically neither dead nor alive?" "So what can you even do inside my belly?" Why has this extraordinary heroic spirit taken residence in Min Jae-has belly instead of manifesting as a weapon or blessing? "Look up to me, and I shall teach you martial arts."