After the second season of the TV anime was decided, the five heroines of "5Toubun no Hanayome" as known as Ichika, Nino, Miku, Yotsuba and Itsuki were having their character books and issued one by one from November 2019 to March 2020 in monthly! They includes the colored illustrations, promotional illustrations in book stores, and unrevealed default settings! "The name of best episodes" with the unique charisma of each heroines are coming with "the interviews with Mr. Haruba." The books are also included the analysis of each heroine who makes you "love them once you see them!"