A new "activity diary" woven by the 9 members of μ's, with 2 members contributing one episode each. This series features a baton-touch format where the story is passed from member to member. In Volume 3, it includes an episode where the current student council president, Eri, passes the baton to Honoka, along with 3 epilogue chapters woven together by the 9 members, totaling 4 episodes — leading to the conclusion.