Vow of Riju, Sage of Lightning

The is an TotK: in.

Location and Uses
TotK: receives the TotK: from TotK: after the two of them defeat TotK: in the TotK: and TotK: awakens as the TotK:.

By speaking to a TotK: and exchanging four NaN Sage's Wills, TotK: can deepen his bond with TotK:, changing the TotK: into the TotK:.

Trivia

 * The symbol on the TotK: is designed to resemble the character for "lightning".