Butterfly Seeker ~Chaos Nightmare~
- Type: Visual Novel
- Tags: Story-driven, Defloration, School
- Original title: バタフライシーカー ～カオス・ナイトメア～
- Language: Japanese
- Censorship: Mosaic
- Platforms: Windows
─ ─ This is a story of a single warp.
Spring has arrived in Shiroi City. The coldness of the remnant of the winter and the swirl of the narrow fog, the spring of dazzle.
It seemed that invisible Haruka visited the club of the student unit “Musikui” of the abnormal psychology countermeasure team.
Himuro Chitose who is a reliable senior graduated, there was no increase, considering shortage of warfare The delegation of the case ceased.
From the busy end at the end of the year, only the stagnation that seems to be sluggish is full.
One day, a new incident is brought to “Musikui”.
Tono who came to the investigation noticed the existence of a mysterious girl who disguised as a shadow of the incident ─ ─