The current Etoile, Shizuma Hanazono (花園静馬, Hanazono Shizuma) is a highly respected and much beloved person to most of the other students attending the three schools. She looks very mysterious and also seems to have a number of secrets to match this visage. This makes her a difficult person to figure out or to even talk to for someone just meeting her. Most of her secrets - and personal problems - seem to be related to her prior relationship with Kaori Sakuragi, her now-deceased Etoile partner.
She is very skilled on the piano and likes to play it constantly. Much of the time, she doesn't enjoy the dull work of the Etoile, so she often finds ways to skip on her duties, much to the annoyance of Miyuki Rokujō. However, Nagisa manages to persuade Shizuma to resume performing her duties. She is a skilled actress and has participated in Astraea's annual play twice in a row, playing Don Jose in the production of Carmen. She is also noted to excel in French.
Shizuma seems to have developed a crush on Nagisa and has also been seen showing interest in other girls. Despite initially seeing Nagisa as 'just one more pretty girl' to get close with, Shizuma eventually comes to see her as different, displaying a very strong possessive streak with regards to Nagisa. At first, she is only trying to replace the hole in her heart left by her dear friend, Kaori, but considering some of her comments to Nagisa, she is truly in love with her.