Thread:SonikkuAensland/@comment-5688420-20170217164321/@comment-5688420-20170218112645

both the BH protag (unnamed officially, though XCode gives her a name) and Yuu have a similar facial appearance, body type and eye color. their only difference is the outfit (BH protag wears a gothic lolita dress, while Yuu wears the standard school uniform for her academy) and the voice (BH protag is voiced by Miyu Matsuki, Yuu by Minori Chihara. somewhat justified as Matsuki died in 2015)

also, one of the returning characters from BH, Inspector Genichiro Kotobuki, constanly says that he had met Yuu somewhere before.