to be honest, sakuranbo is kinda like a one hit wonder, as ai-chan has nothing to compared with it afterwards (even tho she is still popular afterwards). Of course technically speaking it should be called "the signature song of otsuka ai".
I just hope that something like STEP you will appear this year. Maybe STEP you wasn't a huge seller, but at least it was a still big hit for ayu. Well if she's making something that can be compared with Boys & Girls/A/SEASONS/M/evolution, that will be really wonderful
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