Original work: Baltimre Senpai n Himitsu n Bukatsu Shukai.\r\nTitle: (C97) [Hatokoya (Suruga Rinu)] Introducing the Secret Club of Senpai (Azur Lane) [Chinese translation]\r\n《Introduction to the Secret Club of Senpai's Secret Club of Senpai] (Introduction to the Secret Club of Senpai) is an adult manga by Azur Lane, written by Suruga Rinu from C97 doujin exhibition.