This is the improvised play where you can infer with the actors, attracting more than 50,000 spectators in Japan. Werewolf " it's such an abominable existence. At night with the full moon, it pretends to be someone who it had eaten by the mysterious charm of the moonlight, and preys on families or friends every night. Every performance, actors' roles might be different. Sometimes they are a werewolf, sometimes they are a villager. Arranged in Japanese style, they infer through improvised discussion, trust and betrayal to penetrate others. The ending is also developed by the actors through improvisation.