Riddle Riddle was a dangerous troublemaker who was based in Shinjuku. However it was reported that Riddle Riddle was among the troublemakers that were killed or in custody of the Materials Compiling Group No.3.
Riddle Riddle
リドルリドル
Shousetsu - Dead Mount Death Play Gaiden: Kaijin Solitaire no Shinsen Gijutsu
