A world in which humans and vampires share a bare minimum coexistence. The year is 20XX in Yokohama. The Aoi Research Firm has shone light onto the medical world, developing an artificial source of blood called EX-BLOOD, putting an end to the shortage of blood. At the same time, the vampires who had hidden themselves in the shadows emerge and declare that they will now coexist with humanity. They gradually began show themselves out in society. But by nature, vampires prefer human blood. Some of them continued to assault humans. Even as those vampires that wish for a peaceful coexistence with humans try to keep the others in check, "vampire hunts" are also widespread, carried out by some humans due to a drug-like high a human experiences when drinking a vampire's blood. Even so, at least on the surface, peace appeared to be maintained... The protagonist, Moriya Keiichi, sustains life-threatening injuries in an accident. His best friend, Aoi Setsuna, saves his life with a brand new drug which utilizes a vampire's extraordinary healing capabilities. As a side effect, Keiichi's attribute ends up transforming from Beta into Omega. Keiichi's newly Omega pheromones attract the vampires to him. One day, Keiichi finds himself saved from a dire attack by an Alpha vampire, Ooizumi Genma. As someone who hates vampires, Keiichi refuses Genma's help. However, he himself had become a half-vampire desiring blood... "Dammit.....just what the hell have I become?!"
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| Name | Characters | Importance | Weight |
|---|---|---|---|
| Sex with Others Only Engages in (Sexual) | 5 | 2.65 | 4.75 |
| Vampire Role | 7 | 2.24 | 4.67 |
| Being in Heat Subject of | 3 | 2.96 | 4.10 |
| Fang Body | 6 | 1.88 | 3.65 |
| Tailcoat Clothes | 3 | 2.61 | 3.62 |
| Loose Necktie Clothes | 3 | 2.61 | 3.61 |
| Researcher Role | 3 | 2.39 | 3.32 |
| Ore Personality | 7 | 1.58 | 3.28 |
| Male on Male Sex Engages in (Sexual) | 4 | 2.00 | 3.22 |
| Scientist Role | 3 | 2.27 | 3.15 |
| Grandson Role | 2 | 2.73 | 3.00 |
| Gothic Clothes | 3 | 2.15 | 2.98 |
| Frot Engages in (Sexual) | 2 | 2.71 | 2.97 |
| Executive Role | 3 | 2.15 | 2.97 |
| Belt Clothes | 9 | 1.27 | 2.93 |
| Anal Fingering Engages in (Sexual) | 3 | 2.05 | 2.84 |
| Male Cleavage Body | 2 | 2.53 | 2.78 |
| Sex with Others Engages in (Sexual) | 3 | 1.99 | 2.76 |
| Loyal Personality | 4 | 1.69 | 2.72 |
| Sexual Harassment Engages in | 2 | 2.45 | 2.69 |
| Sex in Front of an Audience Engages in (Sexual) | 5 | 1.50 | 2.69 |
| Lanyard Clothes | 1 | 3.78 | 2.62 |
| Quickie Fix Engages in (Sexual) | 3 | 1.88 | 2.61 |
| Unarmed Fighting Engages in | 3 | 1.88 | 2.61 |
| Confinement Engages in | 2 | 2.36 | 2.59 |
| Aikido Engages in | 1 | 3.71 | 2.57 |
| Short-tempered Personality | 3 | 1.85 | 2.56 |
| Smuggling Subject of | 1 | 3.64 | 2.52 |
| Scalpel Items | 1 | 3.64 | 2.52 |
| Lab Coat Clothes | 3 | 1.79 | 2.49 |
| Half Vampire Role | 1 | 3.56 | 2.47 |
| Famous Role | 2 | 2.24 | 2.46 |
| Anal Sex Engages in (Sexual) | 3 | 1.76 | 2.44 |
| Handjob Subject of (Sexual) | 3 | 1.75 | 2.43 |
| Pragmatic Personality | 2 | 2.19 | 2.41 |
| Anal Fingering Subject of (Sexual) | 3 | 1.71 | 2.37 |
| Red Eyes | 6 | 1.20 | 2.33 |
| Fighting Engages in | 5 | 1.29 | 2.31 |
| Violent Personality | 2 | 2.10 | 2.31 |
| Collar Clothes | 3 | 1.67 | 2.31 |
| Bloody Sex Subject of (Sexual) | 1 | 3.30 | 2.29 |
| Muscular Body | 3 | 1.64 | 2.28 |
| Genetic Research Engages in | 1 | 3.18 | 2.21 |
| Genius Personality | 2 | 2.00 | 2.19 |
| Kunai Items | 1 | 3.11 | 2.16 |
| Switch Role | 1 | 3.11 | 2.16 |
| White Hair | 4 | 1.33 | 2.15 |
| Uneducated Personality | 1 | 3.08 | 2.14 |
| Cruel Personality | 2 | 1.93 | 2.12 |
| Stutter Personality | 1 | 3.06 | 2.12 |
| Cravat Clothes | 2 | 1.91 | 2.10 |
| Ore-sama Personality | 1 | 3.01 | 2.09 |
| Handjob Engages in (Sexual) | 5 | 1.16 | 2.07 |
| Student Role | 3 | 1.49 | 2.07 |
| Stethoscope Items | 1 | 2.98 | 2.07 |
| Erotic Humiliation Subject of (Sexual) | 1 | 2.97 | 2.06 |
| Tsundere Personality | 2 | 1.87 | 2.06 |
| Rape by Proxy Engages in (Sexual) | 1 | 2.96 | 2.05 |
| Fingerless Gloves Clothes | 2 | 1.86 | 2.04 |
| Watashi Personality | 4 | 1.25 | 2.01 |
| Legal Guardian Role | 1 | 2.88 | 2.00 |
| Necktie Clothes | 5 | 1.12 | 2.00 |
| Suit Clothes | 3 | 1.44 | 2.00 |
| Surgery Subject of | 1 | 2.88 | 2.00 |
| Not an Anal Virgin Role | 1 | 2.88 | 2.00 |
| Eye Covering Hair | 2 | 1.80 | 1.98 |
| Classmate Role | 4 | 1.23 | 1.98 |
| Werewolf Role | 1 | 2.85 | 1.98 |
| Human Subject Research Engages in | 1 | 2.85 | 1.97 |
| Medication Engages in | 1 | 2.85 | 1.97 |
| Earrings Clothes | 3 | 1.42 | 1.97 |
| Friendly Personality | 4 | 1.22 | 1.96 |
| Infamous Role | 1 | 2.82 | 1.95 |
| Bolo Tie Clothes | 1 | 2.78 | 1.93 |
| Disciplinarian Personality | 1 | 2.77 | 1.92 |
| Missionary Engages in (Sexual) | 2 | 1.74 | 1.91 |
| Albino Body | 1 | 2.73 | 1.89 |
| Orphan Role | 2 | 1.71 | 1.87 |
| Arrogant Personality | 2 | 1.70 | 1.86 |
| Confident Personality | 2 | 1.69 | 1.86 |
| Anal Masturbation Engages in (Sexual) | 1 | 2.68 | 1.86 |
| Bridal Carry Engages in | 1 | 2.67 | 1.85 |
| Stalking Subject of | 1 | 2.64 | 1.83 |
| Childishly Violent Personality | 1 | 2.63 | 1.82 |
| Butt Plug Subject of (Sexual) | 1 | 2.63 | 1.82 |
| Politician Role | 1 | 2.60 | 1.80 |
| Relaxed Personality | 2 | 1.64 | 1.80 |
| German Role | 1 | 2.59 | 1.79 |
| Discrimination Subject of | 1 | 2.59 | 1.79 |
| Electric Shock (BDSM) Subject of (Sexual) | 1 | 2.53 | 1.75 |
| Coward Personality | 1 | 2.53 | 1.75 |
| Claw Body | 1 | 2.52 | 1.75 |
| Tsukkomi Role | 1 | 2.50 | 1.73 |
| Curly Hair | 1 | 2.48 | 1.72 |
| Secretary Role | 1 | 2.48 | 1.72 |
| Penile Masturbation Engages in (Sexual) | 1 | 2.45 | 1.70 |
| Refined Personality | 2 | 1.54 | 1.70 |
| Hard Worker Personality | 2 | 1.54 | 1.69 |
| Half Updo Hair | 1 | 2.44 | 1.69 |
| Delinquent Role | 1 | 2.43 | 1.68 |
| Modern Tsundere Personality | 1 | 2.42 | 1.68 |
| Hood Clothes | 1 | 2.42 | 1.67 |
| Stalking Engages in | 1 | 2.41 | 1.67 |
| Human Subject Research Subject of | 1 | 2.41 | 1.67 |
| Friend Role | 3 | 1.20 | 1.67 |
| Living Alone Role | 1 | 2.40 | 1.66 |
| Cynic Personality | 1 | 2.39 | 1.66 |
| Magic Wand Subject of (Sexual) | 1 | 2.37 | 1.64 |
| Trousers Clothes | 3 | 1.19 | 1.64 |
| Serious Personality | 2 | 1.49 | 1.64 |
| Actor Role | 1 | 2.36 | 1.63 |
| Assault Engages in | 1 | 2.35 | 1.63 |
| Half-naked Clothes | 1 | 2.34 | 1.62 |
| Sexual Fantasy Engages in (Sexual) | 1 | 2.31 | 1.60 |
| Assault Subject of | 1 | 2.30 | 1.59 |
| Distrustful Personality | 1 | 2.29 | 1.59 |
| Obedient Personality | 1 | 2.29 | 1.58 |
| Class President Role | 1 | 2.28 | 1.58 |
| Foreigner Role | 1 | 2.28 | 1.58 |
| Poor Role | 1 | 2.26 | 1.57 |
| Bullying Engages in | 1 | 2.25 | 1.56 |
| Observant Personality | 1 | 2.24 | 1.55 |
| Sexual Harassment Subject of | 1 | 2.22 | 1.54 |
| Sexual Fantasy Subject of (Sexual) | 1 | 2.22 | 1.54 |
| Spoons Engages in (Sexual) | 1 | 2.21 | 1.53 |
| Bathroom Sex Engages in (Sexual) | 2 | 1.39 | 1.52 |
| Anal Object Insertion Subject of (Sexual) | 1 | 2.18 | 1.51 |
| Glasses Clothes | 3 | 1.08 | 1.50 |
| Sexual Sadism Engages in (Sexual) | 1 | 2.15 | 1.49 |
| Swordsmanship Engages in | 1 | 2.15 | 1.49 |
| Accident Subject of | 1 | 2.14 | 1.49 |
| Condom Sex Engages in (Sexual) | 1 | 2.14 | 1.49 |
| Fainting Subject of | 1 | 2.14 | 1.48 |
| Vindictive Personality | 1 | 2.14 | 1.48 |
| Possessive Personality | 1 | 2.12 | 1.47 |
| Tominagi Engages in (Sexual) | 1 | 2.11 | 1.46 |
| Hotblooded Personality | 1 | 2.10 | 1.46 |
| Parted to Side Hair | 3 | 1.05 | 1.46 |
| Wounding Subject of | 1 | 2.09 | 1.45 |
| Honorable Personality | 1 | 2.07 | 1.43 |
| Bullying Subject of | 1 | 2.06 | 1.43 |
| Brave Personality | 1 | 2.05 | 1.42 |
| Cross Necklace Clothes | 1 | 2.05 | 1.42 |
| Tall Body | 1 | 2.04 | 1.42 |
| Sly Personality | 1 | 2.04 | 1.41 |
| Emotional Personality | 1 | 2.01 | 1.40 |
| Injury Subject of | 1 | 1.99 | 1.38 |
| Cleaning Engages in | 1 | 1.99 | 1.38 |
| Overweight Body | 1 | 1.99 | 1.38 |
| High School Student Role | 4 | 0.85 | 1.37 |
| Decorative Belt Clothes | 1 | 1.98 | 1.37 |
| Sharp-tongued Personality | 1 | 1.98 | 1.37 |
| Vibrator Subject of (Sexual) | 1 | 1.97 | 1.36 |
| Cold-hearted Personality | 1 | 1.96 | 1.36 |
| Scar Body | 1 | 1.95 | 1.35 |
| Bisexual Role | 1 | 1.94 | 1.35 |
| Old Body | 1 | 1.93 | 1.34 |
| Masturbation in front of an Audience Engages in (Sexual) | 1 | 1.90 | 1.32 |
| Villain Role | 1 | 1.90 | 1.32 |
| Beard Hair | 1 | 1.89 | 1.31 |
| Anal Sex Subject of (Sexual) | 2 | 1.19 | 1.31 |
| Jealous Personality | 1 | 1.87 | 1.30 |
| Standing Sex Engages in (Sexual) | 1 | 1.87 | 1.29 |
| Blue Eyes | 4 | 0.80 | 1.29 |
| Multicolored Hair | 1 | 1.86 | 1.29 |
| Doggy Style Subject of (Sexual) | 3 | 0.92 | 1.28 |
| Outdoor Sex Engages in (Sexual) | 2 | 1.16 | 1.27 |
| Hat Clothes | 1 | 1.83 | 1.27 |
| Moustache Hair | 1 | 1.82 | 1.26 |
| Sitting Sex Engages in (Sexual) | 1 | 1.82 | 1.26 |
| Younger Appearance Body | 1 | 1.82 | 1.26 |
| Son Role | 1 | 1.82 | 1.26 |
| Rape Engages in (Sexual) | 1 | 1.81 | 1.26 |
| Boku Personality | 1 | 1.78 | 1.23 |
| Sword Items | 1 | 1.77 | 1.23 |
| Young-adult Body | 4 | 0.76 | 1.22 |
| School Uniform Clothes | 4 | 0.76 | 1.22 |
| Spit-roast Subject of (Sexual) | 1 | 1.75 | 1.21 |
| Outgoing Personality | 1 | 1.72 | 1.19 |
| Quickie Fix Subject of (Sexual) | 2 | 1.08 | 1.19 |
| Reserved Personality | 1 | 1.71 | 1.19 |
| Stoic Personality | 1 | 1.70 | 1.18 |
| Spiky Hair | 1 | 1.69 | 1.17 |
| Sitting Sex Subject of (Sexual) | 2 | 1.06 | 1.17 |
| Doggy Style Engages in (Sexual) | 1 | 1.68 | 1.17 |
| Carefree Personality | 1 | 1.68 | 1.17 |
| Sex with Protagonist Only Engages in (Sexual) | 1 | 1.67 | 1.16 |
| Protective Personality | 1 | 1.67 | 1.16 |
| Spoons Subject of (Sexual) | 1 | 1.67 | 1.16 |
| Kouhai Role | 1 | 1.63 | 1.13 |
| Pervert Personality | 1 | 1.63 | 1.13 |
| Nail Polish Body | 1 | 1.62 | 1.13 |
| Shy Personality | 1 | 1.62 | 1.12 |
| Senpai Role | 1 | 1.61 | 1.12 |
| Grey Eyes | 1 | 1.60 | 1.11 |
| Brown Hair | 4 | 0.68 | 1.10 |
| Bracelet Clothes | 1 | 1.56 | 1.08 |
| Vest Clothes | 1 | 1.52 | 1.06 |
| Energetic Personality | 1 | 1.52 | 1.05 |
| Blowjob Subject of (Sexual) | 1 | 1.52 | 1.05 |
| Pendant Necklace Clothes | 1 | 1.52 | 1.05 |
| Green Hair | 1 | 1.48 | 1.03 |
| Seventh Posture Subject of (Sexual) | 1 | 1.46 | 1.01 |
| Shoulder-length Hair | 2 | 0.92 | 1.01 |
| Teasing Engages in | 1 | 1.44 | 1.00 |
| Brown Eyes | 2 | 0.90 | 0.99 |
| Cooking Engages in | 1 | 1.42 | 0.98 |
| V Bangs Hair | 1 | 1.41 | 0.98 |
| Gloves Clothes | 1 | 1.41 | 0.98 |
| Short Hair | 4 | 0.61 | 0.98 |
| Blond Hair | 2 | 0.89 | 0.98 |
| Grey Hair | 1 | 1.38 | 0.96 |
| Hosome Eyes | 1 | 1.37 | 0.95 |
| Tominagi Subject of (Sexual) | 1 | 1.36 | 0.94 |
| Not Sexually Involved Engages in (Sexual) | 1 | 1.35 | 0.94 |
| Red Hair | 1 | 1.32 | 0.92 |
| T-shirt Clothes | 1 | 1.31 | 0.91 |
| Black Hair | 2 | 0.81 | 0.89 |
| Blue Hair | 1 | 1.19 | 0.83 |
| Standing Sex Subject of (Sexual) | 1 | 1.18 | 0.81 |
| Slim Body | 3 | 0.58 | 0.80 |
| Missionary Subject of (Sexual) | 1 | 1.12 | 0.77 |
| Tareme Eyes | 1 | 1.11 | 0.77 |
| Pale Body | 7 | 0.37 | 0.76 |
| Ponytail Hair | 1 | 1.10 | 0.76 |
| Amber Eyes | 1 | 1.03 | 0.72 |
| Kind Personality | 1 | 1.03 | 0.71 |
| Teen Body | 2 | 0.62 | 0.68 |
| Straight Hair | 1 | 0.94 | 0.65 |
| Virgin Sex Engages in (Sexual) | 1 | 0.85 | 0.59 |
| Blowjob Engages in (Sexual) | 1 | 0.76 | 0.53 |
| Long Hair | 1 | 0.75 | 0.52 |