Nagi, perplexed by Hayate's apparent lack of weaknesses despite being a main character, plots ways to find chinks in his armor. As her various schemes fail to produce results, Maria, Sakuya, and Isumi get swept up in the flow and discuss their weaknesses as well. Hayate and Wataru begin studying German in preparation for a Hakuou mathematics exam. Nagi decides to teach Wataru. While Maria helps Hayate she tells him a bit of background info on Isumi, Sakuya, and Wataru. During a flashback, Wataru felt sad that he can't enter the Hakuou Academy, since there were three seats available for students who skip grades. But when Sakuya arrived in front of Wataru, she gave him her enrollment documents. Back in Hayate’s room, they go to check on Nagi and Wataru. Wataru explains that he only loves Isumi, in which Isumi suddenly heard him. Wataru then covered his confession by telling Isumi that it was a joke, which made Sakuya hit him with a paper fan for being hopeless. Nagi becomes jealous that Hayate and Maria were alone together, so she chases him while he runs away. Prompting Maria to remark that Hayate's weakness is “not understanding the female heart”.