Yasuna Kamiizumi

Yasuna Kamiizumi (神泉 やす菜Kamiizumi Yasuna? )  is a student at Kashima high school and has been Hazumu's classmate since their first year of high school.

History
Ever since she was born, Yasuna has had a unique affliction which makes her incapable of seeing males, that is, to her, male's faces are covered in a gray, hazy blur, which makes it extremely difficult for her to tell one male apart from another, except through the sound of their voice.  Due to this, she was never able to get along well with others; on top of not being able to see the boys in her class at school. The girls who would normally interact with male students were different compared to Yasuna, which built up a divide between her and everyone else.  She ended up staying alone for years, and she thought she did not mind it; she did not intend to befriend anyone anyway. However, when she stumbled across Hazumu one day in her first year of high school, she was shocked to find that she could see most of him clearly, though his face was still somewhat blury (perhaps because Hazumu has a female gender identity?) .

Synopsis
From that point on, Yasuna wanted to learn more about Hazumu and gradually fell in love with him. However, even when Hazumu confessed his love to her in their second year of high school, she rejected him since he was still a boy, and she was afraid that he, too, would one day disappear from her vision, plus the fact that Yasuna prefers girls. After Hazumu's transformation into a girl, Yasuna wastes no time trying to rectify her mistake and confesses her love to Hazumu finally, but Hazumu is very confused by this and does not know what to do, especially since Hazumu's physical change.

She has been practicing the flute for many years and is very good at it, so naturally she joins her school's music ensemble when she enters high school. While initially cold and distant from others, Yasuna gradually changes and becomes much easier to approach. Her friends in the musical ensemble tell her this, and ask her if she changed due to someone she likes, and Yasuna affirms this is the fact. Yasuna has shown herself to be very devoted to Hazumu, and in a conversation to Tomari, Yasuna tells her that she wants Hazumu all to herself.

<p style="margin-top:0.4em;margin-bottom:0.5em;color:rgb(0,0,0);font-family:sans-serif;"> Yasuna's character changes between the manga and anime in regard to her level of devotion towards Hazumu and how much she is willing to do to be with her, especially after Hazumu's transformation into a girl. The first instance of this is when Yasuna confesses her love to Hazumu the first day she returns to school as a girl, but in the anime she does not confess to Hazumu after the change and in fact starts to avoid her. Similarly, during the time when Hazumu is shopping for her first bra, Yasuna shows up in the manga version and helps Hazumu into a very feminine bra, but in the anime it is Tomari who helps her try on her first bra. In episode three of the anime, Yasuna continues to avoid Hazumu despite still longing for her, and it takes an effort by Hazumu to restore their previous friendship, but Yasuna never once tries to avoid Hazumu in the manga, this to the contrary, Yasuna tries to be around Hazumu as much as possible in the manga version. During the time when Yasuna holds a curry party in the manga, which is combined with the beach trip in episode seven of the anime, Yasuna tells Tomari that she wants all of Hazumu to herself and she invited the others to the party so that she could see Hazumu's brightest smile. However, during the same scene in the anime, Yasuna tells Tomari that she invited Tomari and the others so that she could learn more about Hazumu and her likes and dislikes.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19px;color:rgb(0,0,0);font-family:sans-serif;">Yasuna's unique affliction to be unable to see males is changed from the manga to the anime. While in the manga Yasuna says she has never once been able to see males completely clearly (Hazumu being the only slight exception),Yasuna explains in the anime that she at one time was able to see males, but one day she could not see her father anymore after he got angry with her as a child, and it escalated from there to encompass all males. Additionally, in the eleventh anime episode, Yasuna becomes unable to see females as well, though this is later rectified in episode twelve when Yasuna is completely healed and is able to see both males and females. In the anime, Yasuna is shown to be terrified of males, even those in her own class, but in the manga she merely pays very little attention to males around her, even when spoken to directly, or otherwise ignores males completely. In the anime, Yasuna is shown at one time accidentally ignoring her father at the dinner table, but the only time Yasuna is shown speaking to her father in the manga has her smiling to him.

Trivia

 * Yasuna resembles Tomoyo Daidouji from Clamp's Cardcaptor Sakura