Nitroplus

Nitroplus Co., Ltd., stylized as nitro+, is a Japanse visual novel computer software company that created has produced Saya no Uta and a variety of other works. Their visual novels usually have dark themes, such as reanimation of the dead and murder. They also have a branch of the company called Nitro+Chiral, which focuses on Boys' Love visual novels. Writers aligned with the company, such as Gen Urobuchi, have also contributed to various manga, anime, novel, and television works.