Iterato

There are two types of people in the world. The blood-giving trait, Benik; the blood-drinking trait, Neo. Diego, a member of the Benik guild, one day receives an unexpected proposal from Roman Frank, the master of his guild. "How about meeting twice a month, during our respective bloody cycles?" "...Are you suggesting we become sex partners?" "That's one way to put it." Diego, who had feelings for Roman, felt despair and disappointment but eventually accepted his proposal. Thus, their secret relationship begins...