Yumi Kikuchi

A war rages on, its end unknown, covering the world in despair. At a military field hospital, a group of soldiers bring in one of their own, wounded by a large, vicious, bite-like wound, along with a large box. The soldiers are visibly shaken. Suddenly, an enigmatic man appears. As he starts to tell them the legend of the Lance of Longinus, their night of unimaginable terror begins.

El día de su boda, Mina (Yumiko Shaku) es asesinada. Su alma viaja a la Puerta del Rencor, donde Izuko, su guardiana, le da a elegir tres destinos: aceptar la muerte, ir al paraíso y esperar a la reencarnación; seguir siendo un alma y vagar eternamente por el mundo de los vivos; o maldecir a una persona y matarla. A la dificultad de semejante decisión, se suma el sufrimiento de su novio Kôhei, con quien Mina no puede comunicarse en tanto que alma, un encuentro con el responsable de su muerte, Tatsuya Kudo, ingeniero genético de fama internacional, y la amenaza de más muertes. La frontera entre el bien y el mal se desdibuja ante la imperiosa pregunta.

In the last chapter of the Refrain Blue series, the bond between Yoshihiro Matsunaga and Nao Morisawa grows stronger, while Yoshihiro finally finds out the identify of the mysterious girl from the first chapter.

The second chapter in the Refrain Blue series focuses on Nao Morisawa and the events that happened at the summer camp last year, with her and Yoshihiro Matsunaga both unable to let go of feelings of the past.

The first chapter of the Refrain Blue series, tells about the recollection of Yoshihiro's past about various events of summer school, of the fate where encounter and separation are interwoven with each other, as Yoshiro and Matsunaga will pass the Toyo Gakuen and will arrive at summer school at seashore. A mysterious girl smiles as she watches Yoshiro who stands still at the seashore dusk.