Tetsuro Okonogi

Serving as the president of Okonogi Gardening, this individual is frequently spotted tending to the Hinamizawa branch school's greenery. Although his intimidating expression often draws complaints from local students, he possesses a genuinely kind heart. Beyond his horticultural duties, he operates a significant company that maintains professional connections with both Rudolf and Hideyoshi. Whether managing landscape maintenance or navigating corporate ties, his presence remains a notable part of the series' interconnected social landscape.