Wanting to provide some emotional support for Mu Han as she prepares for the college entrance examination, her family brings home a little Bichon Frise named Latte. The little dog helps Mu Han relax her tense nerves and brings even more joy to Ranbao, while also filling Mom and Dad with smiles. Everyone loves Latte dearly. Until the day Latte grows old and passes on to the Dog Star, where it meets a little Latte.