[I like how this retroactively makes Rin's suspicions of Terumi in the third trial more valid now.]
So your true form is both a spirit, and similar to a snake.
[Given Rin's wide knowledge of mythology and the occupation listed on Terumi's profile, this is pinging some bells.
At the same time it feels strange. In all of the myths related to the goddess Amaterasu, Rin's naturally reminded of the eight-headed serpent. But you couldn't call that one a guardian...]
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So your true form is both a spirit, and similar to a snake.
[Given Rin's wide knowledge of mythology and the occupation listed on Terumi's profile, this is pinging some bells.
At the same time it feels strange. In all of the myths related to the goddess Amaterasu, Rin's naturally reminded of the eight-headed serpent. But you couldn't call that one a guardian...]
Do you have eight heads too?