Ayumi Kuramoto is Yagi's friend in the Sket Dance franchise.
She is Yagi's closest friend, and there is not much information about her origin story due to her minor role.
Ayumi Kuramoto, who is created by Kenta Shinohara, has no information on what inspired the author to create her. She first appears in Sket Dan volume 2 and episode 10. Her Japanese voice actress is Mai Aizawa.
She and Yagi are good friends who go to the same school and participate in the same club, broadcasting. They are seen shopping together in episode 43 by Bossun and Hime.