After suddenly being reborn as a flea with only three minutes to live, the protagonist discovers the Infinite Bloodsucking System, which offers a chance to evolve by sucking blood and gaining energy and gene points. Faced with a novice mission called 'First Blood,' the flea frantically searches for a source of blood to extend its life. The immediate conflict intensifies as the flea spots a girl emitting a strong blood scent, but only has just over a minute left to act. The episode ends with the flea racing against time to complete its first mission or perish.
A tiny parasite decides to feed on Luna Lynn, a young genius about to forge a contract with the divine Vermilion Bird, to ensure its survival. Luna, the granddaughter of Principal Lynn, faces immense pressure as her family hopes to restore their fading reputation after centuries of decline. As Luna begins the ritual with her primordial blood, observers anxiously watch her progress. She almost succeeds in summoning the infant Vermilion Bird, but suddenly, a celestial anomaly interrupts the process, leaving her contract uncertain and raising new challenges ahead.
Luna, a renowned beast-taming genius, experiences an unexpected setback when she unintentionally forges a contract not with her infant Vermilion Bird, but with a flea. Despite the rarity of a celestial anomaly linked to royal Vermilion Bird blood, Luna cannot sense its power because the contract binds her to a low-tier creature at the bottom of the food chain. This accident forces her to give the flea her Primordial Blood, sealing their bond for life. Authorities warn that this misstep might ruin Luna's future as a beastmaster, leaving her standing at a crucial crossroads.
Luna Lynn faces a crisis as she unwillingly forges a blood spirit contract with a powerful flea, binding their lives together and provoking ridicule from her family. Despite her anger and fear, the flea gains strength and evolves rapidly by feeding on her blood, promising to become unstoppable soon. Luna struggles with the impossibility of breaking the contract while dealing with her family's scorn. The tension escalates when Peter Shelton arrives unexpectedly, demanding to call off his engagement, leaving Luna and the Lynn family’s future hanging in the balance.
Jason Hawks awakens reborn as a tiny flea, armed with hardened mouthparts and a fierce will to survive. With each bloodsucking attack, he evolves, intricate patterns marking his body and signaling his rise toward flight. Cunning and relentless, Jason faces every challenge with ruthless wit. At the same time, Chione Lawson, a cold yet determined young woman from Void Academy, steps into his path. Her strength, vengeance, and sharp perception make her an unexpected but crucial part of his fate. As their worlds collide, survival and destiny intertwine in a relentless struggle where every move counts.
Jason Hawks awakens reborn as a tiny flea, armed with hardened mouthparts and a fierce will to survive. With each bloodsucking attack, he evolves, intricate patterns marking his body and signaling his rise toward flight. Cunning and relentless, Jason faces every challenge with ruthless wit. At the same time, Chione Lawson, a cold yet determined young woman from Void Academy, steps into his path. Her strength, vengeance, and sharp perception make her an unexpected but crucial part of his fate. As their worlds collide, survival and destiny intertwine in a relentless struggle where every move counts.
Jason Hawks awakens reborn as a tiny flea, armed with hardened mouthparts and a fierce will to survive. With each bloodsucking attack, he evolves, intricate patterns marking his body and signaling his rise toward flight. Cunning and relentless, Jason faces every challenge with ruthless wit. At the same time, Chione Lawson, a cold yet determined young woman from Void Academy, steps into his path. Her strength, vengeance, and sharp perception make her an unexpected but crucial part of his fate. As their worlds collide, survival and destiny intertwine in a relentless struggle where every move counts.
Jason Hawks awakens reborn as a tiny flea, armed with hardened mouthparts and a fierce will to survive. With each bloodsucking attack, he evolves, intricate patterns marking his body and signaling his rise toward flight. Cunning and relentless, Jason faces every challenge with ruthless wit. At the same time, Chione Lawson, a cold yet determined young woman from Void Academy, steps into his path. Her strength, vengeance, and sharp perception make her an unexpected but crucial part of his fate. As their worlds collide, survival and destiny intertwine in a relentless struggle where every move counts.
Jason Hawks awakens reborn as a tiny flea, armed with hardened mouthparts and a fierce will to survive. With each bloodsucking attack, he evolves, intricate patterns marking his body and signaling his rise toward flight. Cunning and relentless, Jason faces every challenge with ruthless wit. At the same time, Chione Lawson, a cold yet determined young woman from Void Academy, steps into his path. Her strength, vengeance, and sharp perception make her an unexpected but crucial part of his fate. As their worlds collide, survival and destiny intertwine in a relentless struggle where every move counts.
Jason Hawks awakens reborn as a tiny flea, armed with hardened mouthparts and a fierce will to survive. With each bloodsucking attack, he evolves, intricate patterns marking his body and signaling his rise toward flight. Cunning and relentless, Jason faces every challenge with ruthless wit. At the same time, Chione Lawson, a cold yet determined young woman from Void Academy, steps into his path. Her strength, vengeance, and sharp perception make her an unexpected but crucial part of his fate. As their worlds collide, survival and destiny intertwine in a relentless struggle where every move counts.