Kahoru Sasajima is a Japanese voice actress born on October 4th in Chiba Prefecture, Japan. While some sources cite her birth year as 1974, others list it as 1968. She is affiliated with the talent management firm INSPION AGENCY through a business partnership.

Sasajima began her career in the 1990s and is known for her versatility, often providing voices for energetic boys and tomboyish girls. She has been active across numerous anime television series, original video animations (OVAs), and video games. Her career includes roles such as Asa Kato in the Lime-iro Senkitan series, a role for which she also performed theme songs. She is well-known for her long-standing role as Satsuki Gokajo in the Happy Lesson franchise, which spanned multiple OVAs and television series. Another recurring role is Kouryu in the Saiyuki Reload series and its related OVA, Burial.

In the early 2000s, Sasajima was part of a wave of voice actors who gained prominence in anime adapted from games and visual novels. Her filmography from this period includes Motoko in Happy World!, Rei in Moekan, and Kazumi in Hit o Nerae!. She also voiced the young boy Sasuke Mizunosaki in Oku-sama wa Joshi Kōsei and Hit Tamaga in Bakkyuu HIT! Crash Bedaman. Her roles often saw her in ensemble casts, such as in Akahori Gedō Hour Rabuge, where she played Kaoruko Sajima alongside other notable voice actors. She also contributed to the Gantz anime as Mika Kanda.

Sasajima has demonstrated a strong collaborative spirit, frequently working with specific peers. She formed a notable partnership with voice actress Ai Shimizu after they co-starred in Lime-iro Senkitan. This collaboration led to a radio show and eventually the television series Akahori Gedō Hour Rabuge and its segment Zettai Seigi Love Pheromone, in which they both starred. She is also known to be close friends with voice actress Kimiko Koyama, with whom she worked on the Happy Lesson series. For a period, Sasajima was part of a comedic quartet called T-KY'S, formed with other actresses from Lime-iro Senkitan, which engaged in live events and an internet radio show. Her agency affiliations have changed over time, having been previously associated with Office CHK and Arts Vision before her current partnership with INSPION AGENCY.

In addition to her on-screen roles, Sasajima has an extensive body of work in video game voice acting. She is notably the consistent Japanese voice for the character Dixie Kong in the Donkey Kong franchise, including games like Donkey Kong Country: Tropical Freeze. Other prominent game roles include Zed in Disgaea 6, Kaga in Shin Megami Tensei IV, and various characters in the Eiyuden Chronicle series. She has also been involved in Japanese dubbing of foreign films and animation, providing voices for characters such as Eda Clawthorne in The Owl House and Frankie Burns in the film 21 Bridges.

Beyond acting, Sasajima is also a singer. She has performed character image songs and theme songs for several of the series in which she starred, including Lime-iro Senkitan and Happy Lesson. Under the alias Chu☆, she sang the theme song "Miko Miko Nurse: Ai no Theme" for the adult game Miko Miko Nurse. For adult-oriented works, she has also used the stage names Kannazuki Honoka and Ruru. Her hobbies and skills include karaoke, reading, tennis, playing the Japanese taiko drum, and doing impressions.