Besides the more expensive Japanese Big Three, you can choose the cheaper virtual operator: CMLink card and B-mobile! Although B-mobile also uses docomo's network, it is expensive, complicated to handle and needs to prepare a lot of materials. I always believe that time is money, so I strongly recommend B-mobile. However, it is much easier to apply for a CMLink SIM card, whether it is to apply for a SIM card or activate a SIM card. There are also tutorials in official website, and the set meal is also notoriously cheap. The gospel of the Indigenous Student Party is that 1.500 yen has 6G traffic, exceeding the speed limit of 384KB, and other security cards exceed the speed limit of the package by 200KB. For this reason, I also want to choose CMLink data voice card. Among them, the ace killer is associated with the hometown number, which is deeply loved by China students. This function is unmatched by other Geanka.