Yuuma-kun no Mainichi

Yuma (8), the head of the Yamato family, is a super rich, slightly mischievous young master. In his grand mansion, he lives an elegant and lively life surrounded by his father, his eccentric butler who is devoted to the young master, his beloved dog (a mixed breed), and many servants. One day, a fierce battle breaks out between father and son (and the butler) over the beautiful tutor his father has brought home...!? (Source: Mag Garden, translated)