In the year 1923, a vampire crisis takes Tokyo by storm. Provoked by the illegal trade of Ascra, an artificial blood source, the population of vampires begins to rapidly increase within the city. Under orders from Lieutenant General Sounosuke Nakajima, the Special Forces Unit 16 gathers vampires within the military to create a new undercover vampire-hunting unit known as Code Zero. Leading the unit is Colonel Yoshinobu Maeda. Responsible for locating the source of the Ascra trade as well as capturing and killing vampires, he is pressured into producing fruitful results amidst the growing criticism that threatens to decommission the unit. To make matters worse, the vampires within the unit are struggling to grasp their newfound powers and identities now that they are no longer human. With the world at odds against them, the members of Code Zero must find a way to curb the crisis or otherwise fall victim to their own demonic natures.

Setsu Sawamura runs away from his small home village following the death of his grandfather, the legendary shamisen master Matsugorou Sawamura. On his deathbed, Matsugorou told Setsu to give up the shamisen if he was only going to imitate others instead of playing in his own way. Grieving, Setsu heads for Tokyo, hoping that the big city can inspire him to discover his own unique playing style. But Tokyo defies his expectations by drowning out all other sounds with the deafening noise of its city life. Concerned about her son, Setsu's rich and successful mother, Umeko, waltzes back into his life and forces him to enroll in Umezono Academy. At the school, he meets Shuri Maeda, a girl who is fascinated by the Tsugaru shamisen and wishes to perform a song her grandmother once heard a long time ago. Shuri starts up a shamisen appreciation club and convinces Setsu to teach the members how to play the instrument. As he becomes more involved with the club, will Setsu be able to recover his love for the shamisen and discover the unique sound he lacks?

Massara is an original short inspired from the song of the same name by Kiyoe Yoshioka (of Ikimono-gakari). The song is Yoshioka's first solo single. The short is directed by Keita Nagahara, and animated by the studio Enishiya Inc. The anime's story centers on a singer-songwriter, Nazuna, who is about to stop chasing her dream, and a very shy girl, Yuna. They meet and influence each other to create their own future. (Source: Crunchyroll)