In the manga series "Tokyo Ghoul," Touka Kirishima does not die. She plays a significant role throughout the series and remains a key character until the end. Touka is a strong and resilient character who faces many challenges but ultimately survives and continues to be a part of the story's conclusion. **

Touka didn't help Ken because she was initially unaware of his situation and the extent of his struggles. Additionally, Ken was hesitant to seek help and kept his problems to himself, making it difficult for Touka to intervene. Furthermore, Touka may have been preoccupied with her own challenges and responsibilities, which prevented her from recognizing the extent of Ken's needs. **

Touka and Ken officially become a couple in the Tokyo Ghoul series during the events of the original manga. Their relationship begins to develop as they spend more time together and grow closer throughout the story. However, the exact moment when they officially become a couple is not explicitly stated, but it is clear that their romantic relationship deepens as the series progresses. **

Touka Kirishima from Tokyo Ghoul has a shorter wing because she is a half-human, half-ghoul hybrid. Ghouls in the series have wings that represent their kagune, a predatory organ that ghouls possess. Touka's shorter wing symbolizes her mixed heritage and the struggles she faces in trying to navigate between the human and ghoul worlds. It also serves as a physical reminder of her identity and the challenges she must overcome. **

Ken has been in love with Touka since the beginning of the series, Tokyo Ghoul. Their relationship evolves throughout the story, with Ken's feelings for Touka becoming more evident as they spend more time together and face various challenges together. By the end of the series, it is clear that Ken's love for Touka has only grown stronger over time. **

Ken Touka has been in love with in Tokyo Ghoul for a significant portion of the series. Their relationship develops over the course of the story, and it becomes clear that Ken has had feelings for Touka for quite some time. Their love for each other is a central theme in the series and plays a significant role in the characters' development. **

Touka from Tokyo Ghoul only has one wing as a claw because it is a unique characteristic of her kagune, which is a ghoul's predatory organ that functions as their weapon. In Touka's case, her kagune manifests as a single wing-like appendage that can be used as a powerful claw in combat. This asymmetrical design adds to her distinctive fighting style and makes her a formidable opponent in battles. **

Ken and Touka officially get together in the final episode of Tokyo Ghoul:re, which is the third season of the Tokyo Ghoul anime series. Their relationship develops throughout the series, but it is in the final episode that they finally become a couple. Their relationship is a significant aspect of the series, and their bond plays a crucial role in the overall storyline. **