Chapter 15
The story of a contract marriage set in an old-fashioned goldfish shop. The story begins when Asahi comes to Nana, who has taken over his grandmother's goldfish shop, and asks him, "Excuse me, I know it's our first meeting, but, will you marry me?" (from Mangaupdates.com)
Chapter 6
From a very young age, Shouko only practiced martial arts but now that she’s finally in high school, she wants to be «more like a girl.» During that time, she met Serizawa-kun, a popular guy who’s famous for getting into trouble because of women. Having personally seen Shouko’s strength, Serizawa-kun asked her to protect him, and become his bodyguard. Nursing him, going on a (hypothetical) date, and helping the Student Council together… While spending time together with Serizawa-kun, Shouko, who’s surprisingly being thoughtlessly treated like a girl by a sincere guy, is rapidly becoming aware of…
Chapter 3
Asahi and Nana run a charming little goldfish shop together. They look like a newlywed couple, and technically, they are. But in reality? It’s all a contract marriage. No romance. No real relationship. Just a mutual agreement to help each other out. At least… that was the plan. Asahi can’t stop getting flustered around Nana. Her gentle smile, her quiet strength—he’s falling, and fast. Before he knows it, his heart (and imagination!) are running wild. Can this fake marriage really stay fake, when one of them is head over heels?