Well in Japan it's a sign of peace right?(correct me if I'm wrong)
In Chinese and Japanese the swastika is also a homonym of the number 10,000, and is commonly used to represent the whole of Creation, e.g. 'the myriad things' in the Dao De Jing. During the Chinese Tang Dynasty, Empress Wu Zetian (684-704) decreed that the swastika would also be used as an alternative symbol of the Sun.
Hachisuka family crest is called Hachisuka Manji (蜂須賀卍?).
In Japan, the swastika is called manji. Since the Middle Ages, it has been used as a coat of arms by various Japanese families such as Tsugaru clan, Hachisuka clan or around 60 clans that belong to Tokugawa clan. On Japanese maps, a swastika (left-facing and horizontal) is used to mark the location of a Buddhist temple. The right-facing manji is often referred to as the gyaku manji (逆卍, lit. "reverse manji") or migi manji (右卍, lit. "right manji"), and can also be called kagi jūji (literally "hook cross").
In Chinese and Japanese art, the swastika is often found as part of a repeating pattern. One common pattern, called sayagata in Japanese, comprises left- and right-facing swastikas joined by lines. As the negative space between the lines has a distinctive shape, the sayagata pattern is sometimes called the "key fret" motif in English.