Traits

Shells are non-living protective outer casings formed on the body typically made from keratin, bone/exoskeleton, or most commonly, calcium.

Shells are able to take any shape or form as long as it remains visible and stays located on the backside of the Tatsukoi!
A Tatsukoi may enter their shell if said shell is large enough for them to reasonably tuck their body inside.
These shells may also be purely decorative!

This trait can be paired with other traits!