Sonya is one of the main characters in the anime series 'Kill Me Baby'. She is a highly skilled assassin who is often serious and focused on her missions. Despite her deadly skills, she finds herself constantly annoyed by her classmate Yasuna, who insists on befriending and playing pranks on her. Sonya's character provides a comedic contrast to Yasuna's carefree personality, and their interactions are a central element of the series' humor. Her struggles to balance her assassin life with school life are both entertaining and endearing.