A Very Doofenshmirtz Family Reunion

Heinz Doofenshmirtz has always held a grudge against his family, which was his abusive and neglectful parents and the younger and his mother's favorite child Roger, who is his brother, and he rather stay as far away as possible from them. However, he is one day invited to a reunion, which could probably be a chance to fix his relationship with them and earn their approval.