When British travel agency employee James Kent was asked in mid-November last year to test an overnight stay at a Japanese castle, he wondered if any of his customers would actually pay for such accommodations. After all, the price tag was a hefty 1.1 million yen ($8,400) a night for two guests. Kent was greeted by the blaring of a triton shell horn and the beating of drums. A squad of armor-clad samurai saluted him and his party with gunfire, treating him them like the lords of the castle. "It was overwhelming," Kent said, tears welling in his eyes, recalling a scene like something out of a samurai movie. The castle, a restored wooden keep in Ozu, a town of around 39,000 on the island of Shikoku, is open to overnight guests -- provided they can shell out the cash. Despite the hefty price tag, 11 groups have booked stays from March to June. Two are from overseas. There are people waiting for a cancellation during cherry blossom season.