Paradox Live Hidden Track "MEMORY"

There are 4 stories where all 14 rappers' desire to accomplish are rooted from.

• Never-seen-before story of how Anne met Allen and Hajun, until how they've form BAE!
  
• The beautiful yet fleeting story of the days Saimon, Kanbayashi and Tsubaki spent together, told for the first time.
  
• The meeting of Nayuta and Shiki, and the present prepared for Kanata who believes in Santa!
  
• After Reo joined the Suiseki Group, Iori told him to plan with Satsuki and Hokusai about going shopping for the summer festival. What's the intention behind this...?