A Celestial Wolf that Kohaku has known since childhood. Fen would cheer up Kohaku when he was getting bullied for hanging out with imaginary friends. Now Fen is one of Kohaku's contracted phantasma.
Fenrir
フェンリル
Yuiitsu Muni no Saikyou Tamer: Kuni no Subete no Guild de Monzembaraisareta kara, Takoku ni Itte Slow-Life Shimasu
