Karen Kurokawa

Karen Kurokawa is a minor character in the anime Tokyo Revengers, primarily appearing in flashbacks (especially during the Tenjiku arc in Tokyo Revengers: Tenjiku-hen).

She is the biological mother of Emma Sano and the adoptive mother of Izana Kurokawa (though she is not biologically related to Izana, as he is the son of her ex-husband from a previous relationship).

In the anime version, Karen is depicted as a neglectful, distant, and self-centered parent. She abandons Emma (leaving her with the Sano family) to pursue her own lifestyle, which includes partying and later gambling. She looks very similar to Emma, with long honey-blond hair and golden-yellow eyes, but her expression often appears tired, droopy, and lifeless compared to her daughter's more vibrant appearance.

Her role is mostly tied to explaining backstory elements for Emma and especially Izana's motivations and trauma, as her cold rejection and revelation to Izana that he isn't her biological son deeply affect him. She is voiced by Rina Satou in Japanese.

Overall, she's portrayed as an irresponsible and uncaring mother figure rather than an active participant in the main story.