Trapped and forced to play a murdery game.
Let's begin with the simple rules of explaination:

• Live forever in a peaceful life within the school.
  
• Inorder to get graduated students have to murder each other without being caught.

Game is divided into 2 sections:
Daily live:
Story continues as usual and player got the opportunity to know their classmate better.

Deadly live:
Murder occours and player are forced to investigate inorder to survive.
During Class Trial player has to represent evidences, argue a lot by finding contradictions. Also summarizing the case is the reward to close it once and for all !
Pro

• Shows a perpective from an ordinary boy.
  
• Can tell how the characters react towards despair.
  
• The dialouge offers player many positiv adjectives, interesting quotes and humors that can either be: Irony or sarcasm.
  
• Offers you to think instead of sitting there and read.
  
• Highlights the definition of hope and despair.
  
• Offers an alternative mode.
  
• The soundtracks are indeed fitting into situations that players are confronting with at the spot.

Con

• Some achievments requires you to grind a lot.
  
• The character's audio speaking is somehow irritating.
  
• No alternative scenes.

Conclusion:
This game is funny and got indeed lots of mysteries which are waiting to be discovered to enjoy but after you've reach a certain part, it can be boring.