Ayu is one of Heroes of the Sea Lifesavers characters. She is Natsumi's best friend along with Hijiri. Ayu is one of Hayate and Ayumu's friends who attends Shiomi.<br /> <br /> She made an apperance in Hayate no Gotoku! Chapter 1 and Episode 37 in the flashback when Ayumu asked Hayate if he can take a photo sticker with her, but had no involvement in the main story.<br /> <br /> (Source: Hayate no Gotoku! Wikia)<br /><br />