"D-...! Don't tell her. I'll do anything..." The popular talent, Ren Arisugawa... is actually a girl! This situation, I'll use it to my advantage... okay?

(Source: Coolmic)

Volume 1: Honto wa Ecchi na Onnanoko. (ホントはえっちな女の子。)
Volume 2: Honto wa Ecchi na Onnanoko.: Sweet Scandal-hen (ホントはえっちな女の子。～スイートスキャンダル編)
Volume 3: Honto wa Ecchi na Onnanoko.: Gossip Night-hen (ホントはえっちな女の子。～ゴシップナイト編)
Volume 4: Honto wa Ecchi na Onnanoko.: Melty Scoop-hen (ホントはえっちな女の子。～メルティスクープ編)

Notes:
- Includes 4 extra chapters.
- Originally serialized as a web manga under the title Arisugawa Ren tte Honto wa Onna nanda yo ne. (有栖川煉ってホントは女なんだよね。).
- Simultaneously released in long-strip and traditional formats, with 171 episodes and 57 chapters respectively.
- The first 6 chapters were previously given a tankoubon release as Ore dake ga Shitteru Aitsu no Himitsu (俺だけが知ってるアイツの秘密) under the publishing label Comic Gloss.