Kimiko is indeed present in the comics. Her character brings a lot of depth and intrigue to the plot. There are various storylines involving her that make the comics more engaging.
Kimiko's fate in comics can be quite complex. It might be that in one comic version she survives, while in another she doesn't. It all hinges on the narrative and the creative vision of the comic creators.
One way is through her public image. She can continue to present herself as a professional and talented artist. By doing positive interviews, promoting her music, and engaging with her fans in a positive way, she can overshadow these false 'sex stories'. Also, her legal team could take action against those spreading false and defamatory rumors if necessary.