Yuri ni Koi Shita 101-Nichi Kan is a full-color collection of one hundred and one standalone yuri vignettes created by artist Muromaki. Each entry originated from the artist’s #100DaysofYuriChallenge on Twitter, where a new illustration or short comic depicting a romantic or intimate moment between two female characters was posted daily. The compiled volume preserves these daily works as a single, cohesive book.

There is no overarching plot, recurring protagonist, or continuous setting. Instead, the book cycles through countless pairings and situations: high school classmates sharing a quiet moment in an empty classroom, adult coworkers exchanging glances over coffee, age-gap couples navigating uncertain feelings, childhood friends crossing the line between friendship and love, and even brief encounters between strangers. The scenarios range from sweet and tender to playful and passionate, and each is presented in vibrant full-color artwork that emphasizes facial expressions, body language, and atmospheric backgrounds. The lack of a single narrative allows the reader to experience a wide spectrum of yuri romance, with each page offering a new couple and a new emotional snapshot. The only connective thread is the 101‑day framework, giving the book the rhythm of a daily diary of love.