Halal butter by Meiji is available at various stores in Japan. Insha Allah, it doe snot have any haram ingredients. You may consume it if you wish to. We have seen people using it with bread all the time.
HalalJapan.com is the first-ever halal tourism-related website in Japan aspiring to provide you THE MOST comprehensive and the most accurate information about everything halal in Japan.
The website mainly deals with the halal businesses catering to the growing needs of Muslim visitors from abroad as well as the local Muslims living in this country.