Uzuki Ii

Uzuki Ii ( 井伊 卯月 Ii Uzuki) is a minor character in the Days series.

Information
Uzuki is a friend of Kokoro Katsura and, along with her and Yae Kanroji, an underage victim of Kyouichi Kasannoin since before he began dating Nanami.

School Days
She is initially referred to by name in earlier episodes of the anime, and accompanies Kokoro to the school festival in episode 9.

She seems to be more observant than Kokoro, because when Kokoro mentions to Makoto Itou about her sister wanting to dance with him at the festival, Uzuki notices the look of consternation that comes over Sekai Saionji's face. She then speculates that perhaps Sekai is actually Makoto's girlfriend, something Kokoro adamantly denies.

This does not sway Uzuki's opinion, as she simply remarks "an adult situation. How mature". She then announces that "boyfriend-less Kokoro" would not understand, which sparks a complaint from her friend.

Summer/Shiny Days
Kokoro can reveal that Uzuki tells her all kinds of intimate details.

In the Shiny Days ending Rain of Carnage, Kasannoin lets it slip to Makoto that Uzuki might be pregnant.

Cross Days
Uzuki comes to Sakakino High during the school festival to attend Kasannoin's "Rare Book Lovers" event, which is a front for his sexual activities. It's unknown if she is aware of his infidelity or not, but she most likely is.

Etymology

 * Her given name Uzuki ( 卯月 ) is a term for the fourth month of the lunar calendar.
 * She is surnamed after the Ii clan.