"How did…you…find out?" After questioning the committee chairman, I found out that she has an extremely sensitive pussy. Even when she’s about to faint in ecstasy from having an orgasm, she still won’t admit what she was doing…?

(Source: Coolmic)

Volume 1: Iinchou no Himitsu: Itta Kaisuu ga Barechau Sekai (委員長のヒ・ミ・ツ～イッた回数がバレちゃう世界～)
Volume 2: Iinchou no Himitsu: Itta Kaisuu ga Barechau Sekai 2 (委員長のヒ・ミ・ツ～イッた回数がバレちゃう世界～2)
Volume 3: Iinchou no Himitsu: Itta Kaisuu ga Barechau Sekai: Nijiiro Harem-hen (委員長のヒ・ミ・ツ～イッた回数がバレちゃう世界～虹色ハーレム編)
Volume 4: Iinchou no Himitsu: Itta Kaisuu ga Barechau Sekai: Momoiro Resort-hen (委員長のヒ・ミ・ツ～イッた回数がバレちゃう世界～桃色リゾート編)
Volume 5: Iinchou no Himitsu: Itta Kaisuu ga Barechau Sekai: Kiniro Utopia-hen (委員長のヒ・ミ・ツ～イッた回数がバレちゃう世界～金色ユートピア編～)
Volume 6: Iinchou no Himitsu: Itta Kaisuu ga Barechau Sekai: Mitsuiro Inside-hen (委員長のヒ・ミ・ツ～イッた回数がバレちゃう世界～蜜色インサイド編)
Volume 7: Iinchou no Himitsu: Itta Kaisuu ga Barechau Sekai: Sakurairo Finale-hen (委員長のヒ・ミ・ツ~イッた回数がバレちゃう世界~櫻色フィナーレ編)

Notes:
-Includes 6 extra chapters.
- Originally serialized as a web manga under the title Iinchou, Sakki Toilet de Onatteta desho?: Itta Kaisuu ga Barechau Sekai (委員長、さっきトイレでオナってたでしょ？～イッた回数がバレちゃう世界～).
- Simultaneously released in long-strip and traditional formats.