Invasion of Konoha Arc
During the invasion of Konoha, Yūgao visited the memorial stone where Hayate's name had been engraved and swore to avenge him before leaving with her ANBU squad.
Yūgao visited the memorial again during the Third Hokage's funeral, where she has a conversation with Kakashi Hatake who was also there.
- It is revealed that they are lovers.
Among the Fans
Although is known among the fandom, HayaYuu is not a popular pairing and was often overlooked in the series.