Not Ok With Doubles:

• Osamu Dazai (Bungou Stray Dogs)
• Tyki Mikk (D.Gray Man)
• Colorless King (K Project)
• Kassim (Magi)
• Kashino Rei (Mars)
• Cain (Starfighter)
• Nishiki Nishio (Tokyo Ghoul)

Kinda Ok With Doubles:

• Bakugou Katsuki (Boku no Hero Academia)
• Koujaku (DRAMAtical Murder)
• Worick Arcangelo (Gangsta.)
• Sakata Gintoki (Gintama)
• Kamina (Gurren Lagann)
• Alucard (Hellsing)
• Josuke Higashikata (JoJo's Bizarre Adventure)
• Leone Abbacchio (JoJo's Bizarre Adventure)
• Aomine Daiki (Kuroko no Basuke)
• Ban (Nanatsu no Taizai)
• Amethyst (Steven Universe)
• Johnny Rayflo (Vassalord)
• Arakita Yasutomo (Yowamushi Pedal)

Ok With Doubles:

• Hak (Akatsuki no Yona)
• Suguro Ryuji/Bon (Ao no Exorcist)
• Orlando Haddick (Catherine)
• Cross Marian (D.Gray Man)
• Ginti (Death Parade)
• Howl Pendragon (Howl's Moving Castle)
• Kano Shuuya (Kagerou Project)
• Zapp (Kekkai Sensen)
• Tenga Hajime (Kiznaiver)
• Yamada Kazunao (Kiznaiver)
• Sebastian Michaelis (Kuroshitsuji)
• Sharrkan (Magi)
• Sinbad (Magi)
• Iron Man/Tony Stark (Marvel)
• Skwisgaar Skwigelf (Metalocalypse)
• Magnus Hammerstein (Metalocalypse)
• Misawa Mitsuyoshi (My Little Monster)
• Tobari Durandal Kumohira (Nabari no Ou)
• Satanick (Obsolete Dream)
• Matsuno Karamatsu (Osomatsu-san)
• Junkrat (Overwatch)
• Takakura Kanba (Penguindrum)
• George Wickham (Pride and Prejudice)
• Hasekura Heath (Prince of Stride)
• Kogami Shinya (Psycho-Pass)
• Johnny Gat (Saints Row)
• Masamune Date (Sengoku Basara: Samurai Kings)
• Chousokabe Motochika (Sengoku Basara: Samurai Kings)
• Tsubaki (Servamp)
• Rom (Show by Rock!!)
• Grateful King (Show by Rock!!)
• Jinguji Ren (Uta no Prince-sama)
• Nines Rodriguez (Vampire the Masquerade: Bloodlines)
• Keith (Voltron Legendary Defender)
• Idate (Wadanohara and the Great Blue Sea)
• Kyouya "Satacchi" Sata (Wolf Girl and Black Prince)
• Cyclops/Scott Summers (X-Men)

Kin:

• Wolves
• Demons