The Warbling White-eye (Zosterops japonicus), also known as the Japanese White-eye, occurs in much of East Asia, including the Russian Far East, Japan, Indonesia, Korea, and the Philippines. 

1st, 2nd & 3rd photo: Uji, Kyoto Prefecture, Japan, 2 October 2018
4th & 5th photo: Maruyama Park, Kyoto, Japan, 1 October 2018