Switcharoo

Plot
The story begins with Irvine walking to school like a normal day, however on his way, he comes across an odd crystallic stone. Finding it pretty, he chooses to keep it with him. What Irvine fails to realize, however, is that the stone is meant to stay inside the boxed shrine it was found by. Taking it to school, the students from different classes find themselves locked inside PE class.

Complaining, everything seems boring and lame until Irvine pulls out their stone and admires it. However Lorelei bumps into Irvine causing him to drop the stone and it shatters on the ground. This was a solid crystal in texture, roughness, everything, yet it shatters the very second it hits the ground. Afterwards the ground shakes and the lights shut off.

Once awake, everyone seems a little normal, until they start speaking. Irvine is the only one unaffected as he discovers that every one of his classmates have the complete opposite personalities that they had before. Now while dealing with the group of unusual characters, Irvine must find a way to solve this mystery and bring everyone back to normal.

Greyson Irvine
The only person unaffected by the switcharoo and the 'detective' character that sets out to solve the mystery of how to get things back to normal.

Ruhige Lorelei
Irvine's friend that has a protective streak towards him. She accidentally makes him drop the crystal that breaks and causes a 'switcharoo'.

Masanori Ryuu
A self-proclaimed 'villain' that has his personality switched.

Ariyoshi Tadako
A sweet and shy girl that acts the opposite after a mysterious crystal shatters.

Hinamoto Akane
A rather recluse classmate that is changed with the switcharoo.

Grey Tsura
A gentle fortune teller that acts differently after being locked in gym.

Unda Kesil
A teenager fond of mischief that has his roles reversed.

Hitoshizuku Chiharu
A by-the-rules person that becomes the opposite in this roleplay.

Tsuruga Akihiko

An eccentric designer who acts the reverse of his nature.

Setting
The setting is not exactly named. However it mainly pertains to the school all the characters attend. It the school for all grade levels. This is similar to the school in Hinamizawa and Yoshitsune Academy, the school of Seikawa. It is possible it takes place in either of these places.