Hamaoka Azusais a supporting character of the manga series Grand Blue. She is a third year student at Oumi Women's University. Azusa has a very playful and mischievous personality. Unlike the other female characters, she regularly drinks with the male members of the club, strips alongside them and parties hard with them while taking part in their outrageous antics. Ryuujirou Kotobuki and Shinji Tokita mention that there is no use treating her like a lady, as she is very brazen and audacious (she had no problem taking off her clothes and going to sleep in the same room as Kotobuki, Tokita, Kouhei Imamura and Iori Kitahara, in which all four of them were naked). She can also be seen as shameless, as when she forgot her swimsuit for the Miss Izu contest, she simply went on in her underwear. She can also be shown being very perceptive as she can pick up the somewhat ridiculous logic behind situations that occur very well. Azusa admitted (to Iori) that she is bisexual and stated that her ideal woman is Nanaka Kotegawa and her ideal man being Shinji Tokita.