You can make an exploration team with a minimum of 3 Starpets and a maximum of 9 Starpets.

However, the Starpets that are following you cannot depart on the expedition. Therefore, you must store them in the Starpet House and then register them as members of the hot air balloon expedition team.

Additionally, it might be challenging to send Starpets with low affinity on hot air balloon explorations. So, if the affinity decreases, please consider feeding the Starpet to increase their affinity.

Once Starpets are dispatched, they cannot be sent to the center or accompany you. Therefore, after completing the expedition, touch the expedition complete button to obtain rewards and manage the Starpets.