The Naruto art exhibition in Tokyo opened to the public on Saturday, and visitors — who received the free Official Guestbook Shinden Fū no Sho book for attending — were finally able to uncover one of the best-kept secrets from Masashi Kishimoto 's Naruto manga: what Copy Ninja Kakashi's face looks like under his mask.

ANN attended the exhibition on the first day, and received a copy of the book. So here it is folks, what you've all been waiting for:

In the manga included with the guestbook, Naruto, Sakura, and Sasuke are discussing how to best uncover Kakashi's face. The three meet with a photographer named Sukea, who wants to take a picture of Kakashi's face because it would be a scoop. After a failed attempt, the three ninja go home. However, it turns out that the photographer Sukea is actually Kakashi himself in disguise, and he reveals his face in the manga before taking a shower. At the end of the short, Kakashi says he plans to play around with Team 7 a few more times about what might be hiding under his mask.

Those who purchased special advanced tickets also received an Official Guestbook Shinden Rai no Sho book that features a manga short about Kiba and other extras.

The exhibition will also sell a Michi guidebook for 1,300 yen (about US$11) starting in the beginning of May that includes a long dialogue between Kishimoto and One Piece creator Eiichiro Oda .

The exhibition will run from April 25 to June 28 in Tokyo and from July 18 to September 27 in Osaka. The exhibition will include new illustrations that Kishimoto created just for the exhibition, and a display corner with models, clips, and other photos to give more background about the series.

So what do you think? Was it worth hiding his face for more than 15 years, or is the reveal a disappointment?