President of Okonogi Gardening. Occasionally, he can be seen doing some pruning at the Hinamizawa Branch School. You would think he was just a landscaper, but he has a keen eye for detail. He's not a bad person at heart, but he has a tough face and is often whined about by the younger students at school. Okonogi is a member of the Japanese Self-Defense Force with experience in combat training. He joined the secret organization Tokyo and became the head of the Mountain Dogs under the codename Phoenix 1, working with Takano Miyo and the Irie Institute with the job of keeping Hinamizawa Syndrome's existence secret from the public while capturing any terminal patients they find. [Edited from Tetsurou Okonogi on 07th Expansion Wiki]