They were issued a challenge to sell 50,000 copies of their demo single , '' Ai no Tane '' , with just five days of promotion events .
'' Ai no Tane ''
'' Ai no Tane ''
اجعل هذا النص أقل تعقيدًا: They were issued a challenge to sell 50,000 copies of their demo single , '' Ai no Tane '' , with just five days of promotion events . خرج: