Holy fuck, this chapter was amazing. It made me realise, once again, Athena is the reason why I've kept on reading this manga (even if she barely shows up). Anyway, basically, Athena (grown-up form) showed up during Hayate's sleep, in his room, in his bed. Hayate was seriously surprised, by she asked him to keep quiet, because otherwise, it'd be troublesome for her. Hayate asked her why was she in his room, but Athena apologised and told him she had no time to answer that, then she hugged him, and told him once again she had no time. After that, she asked him if she knew about the whereabouts of his brother, to which Hayate replied he didn't know, but he was sure that, wherever Ikusa may be, he must be helping people. Athena then said "I see, I guess that's how it is," and then she showed some signs of pain, but told Hayate that was nothing to worry about. After that, she told Hayate there were 2 important things she had to told him. The first one was he shouldn't tell anyone about that Castle's Garden (a pic of Royal Garden is shown). She told him that place holds a forbidden power no one should get. The second request was that, the next time he met her, he should just go with the flow, without getting agitated. At the end, she asked him to forgive her, there were many things she wanted to tell him, but she had no time. She told him to please do his best, that he can do it. After this, Hayate started calling her name and he woke up.
During the morning, Nagi was up early. Maria seemed tired, and she said Nagi was so excited, that she didn't let her sleep. Then Nagi sad there's nothing to worry about, as long as humans have something they want to do, they can always work hard. However, after that, she said she'd try hard tomorrow, because she wanted to sleep and told Hayate to go alone to school.
At school, Hayate met Aika and Chiharu. They started speaking, and Hayate asked Aika what was she doing, and she replied she was looking for something. Hayate said he could help her, but she said she was okay. After this we saw a scene at the Student Council, Yukiji started making a ruckus as always, and Hina left. While she was outside, Hayate asked her what was wrong, and when she was replying, she bumped some kid who looked exactly like Athena 10 years ago. The stupid trio showed up and started saying if that was Hina's kid, but then asked the child where she came from, but she replied she had no idea, that when she realised it, she was in there (the school). Hayate realised this kids resembled Athena, but kept it to himself and said nothing. At this point Izumi asked where her mother was, and the child pointed at Hina's abdomen, and she became flustered. The final panel had Aika saying "See? I've found it."