The official X (Formerly Twitter) account of the anime adaptation of Miura Kouji‘s Blue Box has announced that Kaji Yuuki will voice the new character, Matsuoka Kazuma.
The official account also shared a message from Kaji Yuuki.
- Kaji Yuuki:
- “I’m Kaji Yuuki, and I will be voicing Matsuoka Kazuma.
Perhaps because he returned from studying in America,
he can communicate with anyone in a frank and close manner.
He seems to have an especially good relationship with Chinatsu.
While keeping that dynamic in mind,
I had a lot of fun portraying his slightly eccentric personality.
Recording alongside the young and talented main cast and sharing the youthful energy was a truly enjoyable experience. Please look forward to Matsuoka’s appearance!”
- “I’m Kaji Yuuki, and I will be voicing Matsuoka Kazuma.

About Blue Box:
Inomata Taiki, a freshman in the boys’ badminton club, enrols at Eimei High School, a powerhouse of a sports school that combines junior and senior high school education.
Taiki falls in love with Kano Chinatsu, a senior student one year older than him, whom he sees every morning during practice.
Chinatsu is the girls’ basketball team ace and a popular girl outside of school.
Taiki and Chinatsu’s busy high school life, packed with club activities, romance, and studying, begins!
[Rewritten from official website]
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