Akari Kizuna (紲星 あかり) is a popular character from the Voiceroid series, a line of speech synthesis software developed in Japan. Known for her bright and energetic personality, Akari is often depicted with orange hair and a cheerful demeanor. She serves as a voicebank for the Voiceroid software, allowing users to create natural-sounding speech. In addition to her role in Voiceroid, Akari has become a beloved virtual personality, appearing in various music videos, fan works, and collaborations within the Japanese vocal synthesis community.