Koyuki Chigiri is a supporting character in the manga and anime series Blue Lock, known as the older sister of Hyōma Chigiri and a member of the Chigiri family who appears during the U-20 Japan representative arc.
Name: Koyuki Chigiri
Gender: Female
Birthday: October 25
Age: 21 years old
Zodiac Sign: Scorpio
Blood Type: O
Family: Father, mother, younger brother Hyōma Chigiri
Voice Actor (Japanese): Rumi Ōkubo
Her basic character data is taken from the Blue Lock character book “EGOIST BIBLE 2.”
Koyuki Chigiri is the older sister of Hyōma Chigiri, one of the main forwards participating in the Blue Lock project.
She represents the more grounded, family side of Hyōma’s life and helps show what he is fighting for off the field.
Koyuki was first mentioned indirectly through Hyōma’s profile, where the existence of an older sister was noted without revealing her appearance.
Her full visual design was later revealed in the original manga in chapter 122.
When she appears, Eita Otoya casually calls her “cute,” highlighting her approachable charm.
Tabito Karasu comments on Koyuki and Hyōma as a “beautiful brother-and-sister pair,” emphasizing their good looks and strong family resemblance.
Koyuki appears together with her mother to support Hyōma when he plays for the U-20 Japan national team.
This scene portrays her as a caring and supportive sibling who is emotionally invested in her brother’s success.
In the anime adaptation, she appears in episode 33.
Her name, Koyuki Chigiri, is officially revealed in the end credits of that episode.
Compared to the original manga, the anime gives Koyuki more screen time and additional dialogue, allowing her personality to stand out more clearly.
Like her mother, Otoneko Chigiri, Koyuki’s hair and eye colors are depicted as darker than Hyōma’s, visually tying the two women together while distinguishing them from his brighter coloring.
Koyuki is portrayed as gentle and supportive, the kind of older sister who quietly but firmly stands behind her younger brother.
Her presence during Hyōma’s U-20 matches suggests she is deeply proud of him and emotionally involved in his football career.
The way other characters describe her—“cute” and part of a “beautiful sibling pair”—implies that she has a calm, attractive appearance that fits the graceful image associated with the Chigiri family.
Her darker hair and eyes give her a more subdued, mature look compared with Hyōma’s striking colors.
While she does not participate in football herself, Koyuki adds emotional depth to the story by showing the family ties and personal stakes behind Hyōma’s ambitions.
Her increased lines and scenes in the anime further flesh out this softer, more everyday side of the Blue Lock world.
Manga
Koyuki’s appearance is first fully shown in the original Blue Lock manga in chapter 122.
Before this chapter, only her existence as Hyōma’s older sister was mentioned in his profile data.
Anime
Koyuki appears in episode 33 of the Blue Lock anime.
Her name is confirmed in the credits for that episode, which list her as “Koyuki Chigiri.”
The anime expands her role beyond the manga version of the same scenes.
She receives more lines and extra small moments, emphasizing her reactions to Hyōma’s performance and highlighting her supportive nature.
Koyuki shares the elegant facial features associated with the Chigiri family, aligning visually with her brother Hyōma.
However, her coloring is closer to her mother’s, with darker hair and eyes compared with Hyōma’s brighter tones.
This design contrast helps distinguish the family members visually while still making their relationship immediately recognizable.
The overall impression is that of a calm, refined young woman who balances Hyōma’s more intense presence.
Koyuki Chigiri is voiced by Rumi Ōkubo in the anime adaptation of Blue Lock.
Ōkubo’s performance brings out Koyuki’s warmth and supportive older-sister energy, especially in scenes where she watches Hyōma play.
Official series account posts featuring Koyuki Chigiri and related anime information can be found on X (formerly Twitter):
Blue Lock PR account post:
https://x.com/BLUELOCK_PR/status/1865199548819497181
Additional Blue Lock PR account post:
https://x.com/BLUELOCK_PR/status/1869578402199409059
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