The original Kin-iro Mosaic manga by Yui Hara began serialization.
The first season of the Kin-iro Mosaic anime television series aired in Japan.
The second season of the Kin-iro Mosaic anime, titled Hello!! Kin-iro Mosaic, premiered.
The Kin-iro Mosaic theatrical anime film titled 'Pretty Days' was released in Japanese cinemas.
Alice moves from England to Japan to attend a Japanese high school and stay with the Omiya family, beginning her cultural exchange experience.
Alice decides to join the school's Tea Ceremony Club to deepen her understanding of Japanese culture.
The Tea Ceremony Club throws a surprise birthday party for Karen, strengthening the friendship among the girls.
Alice returns to England for the summer holidays but stays connected with her friends in Japan through letters and calls.
Karen's family visits England and meets up with Alice's family, enhancing international friendship between characters.
The characters gather at the Omiya household for a Christmas celebration, strengthening bonds of friendship.