|Masanori and Sonnet M. Yukine|
雪音 雅律; ソネット・M・ユキネ Yukine Masanori; Sonetto Emu Yukine
|Anime||Senki Zesshō Symphogear|
|Hair Color||Black (Masanori)|
|Relatives||Chris Yukine (daughter)|
- "Yukine" is spelled with the kanji for "snow" and "sound".
- "Masanori" is spelled with the kanji for "gracious" and "law".
- "Sonnet" is a type of poem that is fourteen lines and has a rhyming scheme.
Little is known of either of Masanori or Sonnet's personalities, but it can be assumed that they were kind and idealistic people with ambitious dreams.
They appear to have raised their only daughter with love and care, as Chris holds them in high regard in her memories even years after their death, enough to dedicate to both of them a set of Buddhist shrines in her apartment.
Masanori and Sonnet, a violinist and a vocalist respectively, were famous musicians. They wanted to bring peace to the wars and conflicts of the world using music. Thus, eight years prior to season 1, as part of a non-government volunteer organization, Masanori and Sonnet, along with the young Chris, visited a republic that recently suffered from a coup and had suspended all diplomatic relations with other countries: the Val Verde Commonwealth.
The Yukine family entered the country through Guatemala and put on public music performances in different places while traveling, with the ultimate goal of lending aid to refugees. At first, the family traveled along with delegates from the United Nations, including Sonia Virena, who shared the dream of Chris' parents and acted as an older sister to the young Chris. However, the Yukine family eventually got trapped by the expanding front-lines of the ongoing war and became isolated from their organization. The Yukine family were later declared missing.
Shortly after that, outside sources confirmed that Masanori and Sonnet had died in a terrorist bombing, with terrorists managing to sneak the bomb into their camp due to Sonia's carelessness. Meanwhile, Chris was separated from Sonia, captured by the terrorists, and sold into slavery. Chris would remain enslaved for the next six years until she was saved by the intervention of the United Nations in Val Verde, only to fall into the hands of her next abuser, Finé, upon her return to Japan.
- Masanori and Sonnet are the only named characters in Symphogear to not be voiced.
- According to the manga, Chris' strange way of speaking comes in part from her parents homeschooling her.
- Theoretically, Chris should have inherited Masanori and Sonnet's assets after they died and she was rescued, albeit they would be frozen until she became of legal age to own them. This may be one reason why Chris has her own apartment instead of living at the Yukine home.
- A panel from the manga suggests that Sonnet can also play the piano.
- Sonnet bears some physical resemblance to Finé. Masanori's silhouette from Episode 11 bears slight resemblance to Dr. Ver with the glasses and slightly long hair.