Supairo Burakkumuun (ブラックムーンスパイ Burakkumuun Supairo), known to friends as Supai-San or Supai-Chan, is the main protagonist through Supairo No Densetsu. In the end of Kai, he is dumbfounded when he realizes Igunitsutsu is alive, presuming in preceder episodes that he was dead. Supairo had no real love interest then, but he had a crush on Yun until he found they were already distantly related. Also, in the Second Semester, he gained feelings for Yoko. In the series finale, they both confess the feelings they hid for 2 years.