Character profile
Oto Tachibana
オト・タチバナBiography
Oto Tachibana is introduced as Mikazuchi's sister and becomes closely connected to Yamato's group.
Story spoilers
She is actually sent undercover to gain Yamato's trust, steal Susanoo, and kill him, but develops a genuine bond with the group and falls for Yamato. She later learns that she is not biologically related to Mikazuchi and had been taken from her real mother as a child.
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