Tsubaki Kakyouin

The daughter of the owner of the casino cruise liner that Tsuzuki and Hisoka investigate. She has had heart problems ever since she was little, and has relied on treatment from Muraki, whom she has a crush on. ~!When she was little, she befriended a girl from Hong Kong named Eileen, who was a flower salesgirl. Eileen later boarded Tsubaki's father's ship, but then went missing. It turns out that Eileen was taken by Muraki, who extracted her heart and transplanted it into Tsubaki, who was not aware of any of this at…