Urban Bodyguard Mistakenly Bound to Apocalypse System

Poor security guard Xiao Se is mistakenly bound to an apocalypse system, accidentally mistaking a mosquito for a bloodthirsty dragon and gaining gene-optimizing fluid, which rapidly boosts his strength. He helps Song Yun unravel Zhou Tian's intricate schemes, repeatedly overcoming crises with his treasure identification skills and invulnerable physique, only to discover that Song Yun is actually his contractual partner from a childhood promise. Finally, Xiao Se unlocks ancient martial arts heritage, settles the blood debts of six powerful families, fulfills his savior mission, and protects his beloved and the world.