With a strong sense of duty, Sora is the groups mature voice of reason. Perceived as a tom-boy, she would love to cut loose and have a rip-roaring adventure, but instead she takes on the responsibility of keeping the others safe. She's compelled to do so because she's not convinced Tai can handle the situation.
Sora takes everything serious unlike Tai and think carefully for everyone. She had tried to face the time like an adult and she's done a good job.