Sounds like it’s HEADCANNON TIME! :D

I’ll start:

• Chiaki is often seen silently jogging on the spot or around the islands. The others don’t really understand what she’s doing but they don’t question it as they assume it’s just her way of keeping fit… She’s actually just trying to progress the E-Handbook pet. She counts each exact step as to not over-exert herself.

• Mikan tries her absolute hardest to keep her e-book pet alive, yet it always somehow dies before even reaching adulthood.

• Kaede is a bit of a clean-freak, bathing twice daily and always wiping her piano keys once she has finished playing. She always dusts and always wears fresh clothes (even if it‘s the same outfit)

• Maki actually does get along well with children. She scares them at first, sure, but if they are well-behaved she usually treats them well and plays games with them.

• Sonia has friend-zoned many people, many times. Not purposefully, she just never understood the romantic connotations of being asked out for drinks, meals or even on dates. She just always assumed this was how friends got along.