Claude ranks among sixteen resurrected former leaders of the Date clan, revived through a supernatural mechanism pivotal to the narrative. A dragon deity grants young Date Masamune a magic jewel, enabling him to summon these ancestral figures for combat support and guidance. As one such resurrected clan head, Claude actively aids Masamune's journey, contributing historical expertise and martial prowess to the protagonist's endeavors. His presence functions as part of a collective resource Masamune accesses during decisive battles and critical strategic choices. The jewel acts as the conduit for these ancestral manifestations, directly linking Claude's capabilities to Masamune's use of its power. Claude's inclusion among the summoned ancestors establishes him as both a strategic advisor and combatant in Masamune's efforts to secure his clan's future.