Tsukito is a supporting main character related to one of the family butlers, Kokone.
There seems to be two sides to his personality. He's usually awkward and unintentionally acts a little stalkerish. Though at times he can act quite calm and collected. He's also very loyal to Stella though his connection to her is unknown. More than willing to lay his life on the line to protect Stella if the situation calls for it.
currently his past prior to chapter 1 is unknown. All that was mentioned so far is that Kokone sent him to live over seas after his mother and father (one of which is Kokone's sister's child) passed away.
- Tsukito's kanji "月兔" reads "moon rabbit" a reference to the folklore about the rabbit in the moon with mortar and pestle, another referencing the white rabbit Alice follows in Alice in Wonderland.
- He seems to be able to collect and somewhat control spirits, as well as see them.
- his Alter ego is presumed to be the 'white rabbit' or well Alias, as hinted a few times in volumes 1 & 2
- He is the grandchild of Kokone's Sister.