Best Siblings - Melanie and Nina

After Carl G[alaxy] "Star" Brighton was born in 2002, he was sent to Earth to learn how to love and be loved in return, and randomly ended up in the Hills of Sprout where he was befriended by (then) 30-year-old Melanie Lepe, who was chosen to be the first "Goodnight Guide" for PBS KIDS Sprout's The Good Night Show back in 2005. Then, it was 2006, when, after the second season premiered on July 10th (Star's 4th birthday), the most important AND most tragic event in Star's life happened (see https://www.artstation.com/artwork/dyGqLA). Afterwards, Star met Leo, and then Melanie's younger sister, Nina.

As time went by, Melanie became a detective and opened the Sprout Please Detective Agency, living pretty far away but still keeping in touch with Nina, who had gotten married to Leo, and Star.