Purchase Asagi's house in the Facilities Manager and play Nethersea Volcano (10 Hours Left), Sandwich Palace (9 Hours Left), and Demonland (8 Hours Left). Then, go to the Balcony. Instead of Flonne being in the trap, ot will be Prinny Asagi. After defeating Prinny Asagi, you can go to the Facilities Manager and pay sweets to make her useable in the game.
