they said that when they were promoting the songs, they went to 4 to 5 events which took up the entire day. They've had a japanese tour and before that they promoted their album for a while, several concerts before and during promotions (Mongolia, HK, 3 venues in China, so on), japanese single were released, a comeback, fan meeting, showcases, an endorsement deal with a clothing store and others. All that in 6 months and there is no signs of them stopping any time soon.