Founded in 1718 by Miyamori Kyuemon in Aizu-Wakamatsu, Fukushima Prefecture, Hanaharu Shuzo named its brand from the Chinese verse 'Kaikaishukokushun,' expressing a wish to restore joy and warmth to lives shattered by the Boshin War. The brewery employs a proprietary 'himemeshi' mashing method and ultra-pure water adjustment technology to achieve a soft, approachable character across all grades, including regular sake brewed to ginjo-level care. Its motto, 'The goodness of Aizu is the goodness of its sake,' reflects a deep bond with the regional identity.