Hotoku Ninomiya Shrine, located within the grounds of Odawara Castle, enshrines Ninomiya Sontoku (1787-1856), the late-Edo agricultural reformer and philosopher. Born to a poor farming family in Kayama (now Odawara), Sontoku rose through self-study and was recruited to revive impoverished domains. His Hotoku (“Repaying Virtue”) philosophy — kinro (diligent labor), bundo (living within one’s means), and suijo (sharing one’s surplus) — influenced Shibusawa Eiichi, Matsushita Konosuke, and modern sustainability thought. The shrine was founded in 1894 and is famous for the iconic statue of young Kinjiro reading while carrying firewood.