At 00:17, the location text is NAGANO PREF__T___ JA where the underscore represents a character partially or completely covered by Renko and Merry's feet.

Ame-no-Torifune said in comment #2617583:

At 00:17, the location text is NAGANO PREF__T___ JA where the underscore represents a character partially or completely covered by Renko and Merry's feet.

with how the location text at 00:20, TABAYAMA, YAMANASHI PREFECTURE, JAPAN, was formatted, i assume the location text at 00:17 says NAGANO PREFECTURE, JAPAN