Jinrou Kyoudai wo Hirotta Kyuuketsuki no Hanashi

Albert, a half-human and half-vampire, is abhorred as a "cursed child" and lives a solitary life. However, he and two werewolf brothers, who happened to move in with him, begin to live together. Albert's cold heart is gradually melted by Matthew, the innocent younger brother, and Thomas, the older brother who gently embraces him and says, "I like Al just the way you are." (Source: Frontier Works, translated)