Saki

A long-time servant for the Honjou family who serves as Hijiri's butler. He is completely devoted to Hijiri, though she thinks he is annoying and treats him like a dog. A cheerful and kindhearted young man, Saki is very attuned to Hijiri's moods and behaviors, more so than Hijiri realizes. His devotion to Hijiri and his cheerful nature stems from meeting her when he had been at the lowest point in his life—despite being only a young child, she dragged him all the way to her house and he came to believe that she had given him a second chance at life. His regular declarations of love and gestures of affection to Hijiri are largely met with a violent reaction from her, but are entirely sincere, which Hijiri has difficulty accepting. (Source: Wikipedia)