- 别名:Luciel
- 别名:최세영
- 别名:최루시엘
- 第二中文名 崔世颖
- 罗马字 Choi Saeyoung
- 昵称 Seven
- 性别:男
- 生日:June 11th
- 血型:AB
- 身高:175 cm
- 体重:69 kg
707 (Real name Saeyoung Choi, Baptismal name Luciel Choi) often referred as Seven, is one of the Deep Story characters available in Mystic Messenger. He is a hacker who can quickly find information on anything he can get his hands on.
