Blue Sonnet is a oVA anime that premiered in summer 1989, produced by Mushi Production.

About the production: the story comes from a manga, there are 5 episodes of about 29 minutes and its current status is "finished".

Its main genres are action, drama, music, sci-fi and supernatural, with themes such as Cyborg, Heterosexual and Female Protagonist.

On AniList, Blue Sonnet has an average score of 58%, an average score, and appears on 1,365 users' lists.

Sonnet is a cyborg/esper from a harsh background and now trained to be the ultimate warrior and most powerful weapon in the world. She is sent to Japan to watch Komatsuzaki Lan, who is thought to be controlled by the rage of the esper Akai Kiba (Crimson Fang). Lan is a quiet girl who knows she's different from everybody else and starts to show signs of Crimson Fang after coming into contact with Sonnet. In the course of fighting with Lan, Sonnet starts to rediscover her humanity. At the same time Lan has to fight to retain her humanity and control the Crimson Fang. (Source: Anime News Network)

Official synopsis from AniList.