Touhou Blooming Chaos 2

One day, our Cirno having fun playing around, like usual, decides to walk back to her home, the Misty Lake, through the Beast's path. However, she soon finds that following the memorized path could lead to somewhere else totally unexpected. Cirno, thinking it’s just the consciousness fooling her, attempts few more times until she finds that expect for the Human Village, all other familiar places are terribly dislocated and one would never reach his destination. Also, seemed to be pushed by an unknown force, youkais become aggressive and startstrikingeach other. Why would it happen? Could it be another incident? And how will the residents of Gensokyo, bored for long, face it?