Normally, Aya is a reporter who report the news in Jakarta. But Aya have dragged to a place was called "Gensokyo" by mysterious gap. It leave her no choice except stay and live in Gensokyo with another living creature. But Aya is turned into a crow as She come to Gensokyo, and it gives her a power, such as flying or turning into whole crow or even sounds like it. But why she?

Sandaropa Sandri, Asuka Hori, Riuko Nura, dan Orikumura Zuuri dan Riho Mizuno. 4 Orang siswa SMU yang menjalani hidup sekolahnya dengan biasa saja kemudian terseret menuju tempat bernama Gensokyo! Kehadiran seorang misterius yang mengaku sebagai Tentacle Man juga menemani petualangan mereka. Dapatkah mereka hidup berdampingnan dengan mahkluk-mahkluk lainya disana?