^I believe all the artists who have no. 1 streaks must look for the right dates to release their singles (i.e., Ayu, KinKi Kids, Mr. Children, B'z, etc.). You never see them compete with each other, and you dun see much horrible threat during their release weeks. MW is a special case because SCS was a new group, and no one knew they would have such great threat to ayu. I guess avex will try to plan carefully so they won't fall into the same trap again
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