Her father had opposed the resort development but suddenly died. His daughter Yui realizes she must take action to protect herself and carry on his legacy. However, the true mastermind behind the resort project is a powerful figure from Slave Island. Seeing Yui as an obstacle, the mastermind uses organizational funds to mobilize Slave Island staff and devise a plan to send her to Slave Island. To uncover the truth behind this conspiracy and honor her father's will, Yui heads to Slave Island.