TV-Series
Description
Hyouko is a prominent character from the Haibane community living in the Abandoned Factory district of the walled city of Guri. This nest is co-ed and serves as a counterpart to the all-female Old Home. Hyouko is considered a prominent member of this group and is often seen as its leader.

His name, which he clarifies to a confused Rakka, is written with kanji meaning hail and lake, referring to a frozen body of water. This correction is necessary because his name sounds similar to the word for a chick, a comparison he clearly dislikes. His name reflects a personality that is outwardly cool and hardened, much like a frozen lake, hiding deeper currents beneath the surface. Hyouko is characterized by a stubborn and prideful nature. He is conscious of maintaining a tough, almost macho image, especially as a leader among the rougher Factory Haibane. This sense of pride means he rarely shows his true feelings openly, often choosing a defensive posture of arrogance or distance when he feels vulnerable.

The core of Hyouko's past and his primary motivation in the story is his relationship with Reki, a senior Haibane from Old Home. Approximately five years before the main events, Reki ran away from her nest. Hyouko found her and they became close friends. Seeing her deep grief, he wanted to help her and agreed to a desperate plan: to climb the great wall that surrounds Guri, an act strictly forbidden for Haibane.

During this attempt, Hyouko fell from a ladder and was severely injured. While he eventually recovered physically, the consequences were lasting. The Haibane Renmei, the organization governing their community, decreed that Reki and Hyouko were forbidden from visiting each other's nests, formally separating them. In the aftermath, Midori, a younger Haibane from the Factory who looks up to Hyouko, blamed Reki for the incident. Hyouko, perhaps to maintain his damaged pride or to preserve his standing within his own nest, stopped defending Reki and allowed the rift to grow. He chose the practical reality of living alongside Midori over a distant connection with Reki, hardening his heart to her. This unresolved conflict is why, in the present, he approaches Rakka in town to ask about Reki, showing that despite his cold exterior, he still worries about her.

Hyouko's role in the story is primarily as a catalyst for revealing Reki's past and emotional state. His presence forces the painful history of the wall-climbing attempt into the light. His character undergoes a subtle but significant development through the Passing of the Year festival, a time for reconciliation. In a key moment, Reki approaches him in town and gives him a white Bell Nut, a gift signifying a wish for forgiveness, stating she does not have much time left. This gesture, and the subsequent conversation where Midori and Hyouko finally tell Rakka the full truth of the past, shows Hyouko beginning to lower his defenses. He agrees to help Rakka in her effort to save Reki, marking a move away from years of proud silence and toward a final act of reconciliation. While some sources speculate on a romantic connection between them, the presented narrative focuses heavily on a deep, troubled, and emotionally complex friendship. Beyond his implied physical strength and leadership, a notable ability is his demonstrated skill in climbing, as he was able to place wedges into the Wall during his escape attempt.