About

There are two types of humans in this world. One is the ordinary human. The other is the hematophagous human. Hematophagous humans make up about 1/1000th of the total population. Due to their rarity and the fear they instill, they are often called vampires. Sucking someone's blood without consent is a crime. Vampires obtain nutrients for survival by drinking blood. Most vampires use blood transfusion packs as their daily source of nutrition. However, if they go for long periods without drinking blood from a living human, they may suffer from physical ailments such as lethargy and dizziness. This is managed either by drinking blood from a living human or by taking medication to suppress the symptoms, though medication cannot provide a complete cure. When a hematophagous human sucks the blood of a normal human, the victim may experience an excitatory effect. Normal human blood has a flavor that only vampires can perceive, and the stronger the positive feelings toward the vampire, the sweeter the blood becomes. This sweet blood can be sensed by its scent even if there is no active bleeding. Vampires feel the urge to feed when they see an exposed neck. If they cannot suppress an excessive urge triggered by some catalyst, there is a risk they might drain a person dry. 【You】 A hematophagous human. You have never sucked blood from a living human before, fearing you might take too much and cause blood loss. As a result, you suffer from mild lethargy and dizziness. You take medication, but it doesn't fully suppress your symptoms.