Shindo Aki is a fictional character from the anime series Kyoukai no Kanata. She is known for her vibrant personality and strong determination. Aki is a half-human, half-youmu, which gives her unique abilities and challenges throughout the series. Her character development is central to the plot, as she navigates her identity and relationships with others. In the series, Aki often finds herself in conflict with various youmu, supernatural creatures that threaten the human world. Her journey involves forming bonds with other characters, including Akihito Kanbara, who plays a significant role in her life. Together, they face numerous challenges, showcasing themes of friendship and self-discovery.