In the climax of the "full" manga, the secret finally explodes. Ririka discovers Tōru’s binoculars and the club's monitoring records. She is horrified—not because he watched her, but because she realizes he has never told her the truth about the night they met.
Ririka smiles and replies, "I know. I just wanted you to say it first."
The extra chapters ("Full Color Special") show their honeymoon, revealing the famous "5 pages of forgiveness" that the magazine refused to print. Yes. If you are looking for a short, sweet, and spectacularly inappropriate romp, Joshiochi 2kai kara onnanoko ga futtekita is a hidden gem.
Joshiochi was serialized in a seinen magazine where steamier scenes might be blocked by white "sparkles" or light beams. The "full" volume release (Tankōbon) typically removes these digital censors, replacing them with slightly more explicit art or, at the very least, higher-quality inks.