- Cardiovascular Brotherhood/Sisterhood
- Heart Brotherhood/Sisterhood
- The Cardiovascular Brother/Sister
- The Heart Brother/Sister
User possesses a link to somebody/something through their heart. This could allow them to know each other's locations, share in other power(s) or other capabilities.
- Might be irreversible.
- Corruptions or imperfections of their souls may carry onto the other.
- Death of one or more of the users may sever the link.
- Death of one or more of the users may result in the death of all of the users.
- Sora (Kingdom Hearts)
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