Drawn as a thank you to LucCalar for promoting a couple of my fanart pieces recently.
Thank you again, LC! You’re awesome! I saw in your world intro that you’re a fellow Darker than Black fan, so I hope you will like this

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Hei, Yin, and Mao from Darker than Black
Process Steps on Tumblr
Please excuse my inability to come up with a decent title ^^;