The main ingredients in akafuku that they disclose in the official website are glutinous rice, red bean and sugar. The glutinous rice is pounded into a rice cake called “mochi”. The mochi is slightly sweetened. It is enveloped/topped with a smooth red bean paste that’s very sweet. They have an English site that goes into more detail: http://www.akafuku.co.jp/global/english/ Hope this helps!
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