Mr. Otsubo is my best friend.

Ōsumi was an ancient place name in Japan, located in the eastern part of present-day Kagoshima Prefecture.

Mr. Ohata is my best friend.

Mr. Onuki is my best friend.

Mr. Obayashi is my best friend.

Mr. Oura is my best friend.

The Japanese giant salamander is an endemic species in Japan and the largest amphibian in the world.

Zoonosis is a disease that spreads from animals to humans, or vice versa.

Beautiful landscapes enchant people everywhere in the world.

I have been communicating with him for a long time.