Diabolo/YMMV


 * Complete Monster: Nebiros. A fellow general describes him as 'the especially brutal, heinous one who bestows every conceivable pain.
 * Ho Yay: OR, they could be this.
 * Did we mention that the way Rai wants to die is sleeping in Ren's arms on a snowy mountain?
 * Kyouya and Ren have a moment or two as well.
 * The Woobie: A number of the cast to varying to degrees, but Tsukiko owns this trope like nobody's business. Her father succeeded in a family suicide which left her as the only survivor and she was sent to her uncle's house, where she is raped repeatedly. Eventually she leaves him and finds another place to live, but the situation isn't much better. It is heavily implied she is raped regularly by random strangers and accepts all this abuse as penance for her father's sins.
 * World of Woobie