Shirō is Kanko's older brother. While playing in snowy fields with his sister, they encounter a young fox named Konzaburō. Influenced by traditional folklore depicting foxes as deceitful tricksters, Shirō approaches the cub with caution, reflecting his culturally learned skepticism.

Despite this ingrained wariness, Shirō sets it aside and engages with Konzaburō. He accepts the fox cub's invitation to a special evening festival organized by foxes deep within the forest. Accompanied by Kanko, Shirō embarks on this visit, directly confronting his preconceived notions.

The experience at the fox festival proves pivotal. Witnessing the spectacle firsthand challenges Shirō's beliefs rooted in folklore. This encounter and participation significantly shift his perspective, moving him from initial suspicion towards a more trusting and accepting view of Konzaburō and foxes.

This journey illustrates Shirō's capacity to overcome prejudice through direct experience and personal connection. His development centers on transitioning from inherited distrust to forming a genuine bond with Konzaburō, forged by their shared experience at the festival.