The K16s (Sonata's matriline) and the K18s (a now extinct matriline) used to occasionally travel separately from the rest of K-Pod. Sonata seemed particularly close with K21 Cappuccino, the last living member of the K18s. Interestingly, since Cappuccino's death in 2021, K-Pod has moved as a more cohesive unit again with it becoming rare for Sonata and his mom to break off.