Kaede stands as a primary supporting figure within the narrative. He is the younger twin brother of Enju, and both belong to the Samurai Seven, descendants of the legendary Goblin Knights. The brothers share identical physical features: brown eyes, light brown or dirty blonde hair, and matching heights. Kaede dons distinctive combat attire featuring a black helmet adorned with a flat ring and blue plume, plus a mask with v-shaped markings.

Personality-wise, Kaede brings friendly mischief, mirroring his twin. He perceives himself as the more manly brother, fueling their lighthearted rivalry. Within the group, Kaede acts as the mood maker, consistently injecting levity and energy. His bond with Enju is exceptionally close, marked by mutual enjoyment and playful antics, evident in their coordinated actions during missions and downtime.

In combat, Kaede wields a spear and wakizashi, matching Enju's armaments. His role involves active participation in protecting Fena Houtman and supporting her quest concerning Eden's mysteries. A key contribution occurs at Bar-Baral. Accompanying Fena and Enju to a merchant's shop, Kaede helps discover a clear stone like Fena's heirloom. He participates in trading their comrade Karin's fire-lighter for information, revealing the stone's origin in Idar-Oberstein, Germany, and its former royal ownership, which directly guides the crew towards Europe.

His interactions extend beyond Enju. During an early encounter with Salman, Kaede jokingly suggests waiting to intervene until witnessing Salman's teeth being extracted, showcasing his mischievous humor alongside his brother. Throughout the narrative, Kaede remains a consistent ensemble presence, fulfilling his roles as both warrior and a source of camaraderie.