For mvrdrk. The kanji come from this webpage, main page being here. Very useful for the alternate names of countries etc. Eg 慶 kei the country name vs 景 kei the country use name.
Keiki 景麒 Kei taiho 景台輔
Hankyo 班渠 Keiki's isoku (no kanji on wp and I haven't read that far in vol 1) Kaiko 芥瑚 Keiki's nyokai 女怪 Jouyuu 冗祐 Keiki's hinman 賓満 Juusaku's name is written in katakana on the webpage Hyoki 驃騎 Keiki's kogou