Persona 5: The Phantom X rolled out its Version 5.3.1 update, introducing a new swimsuit character and a variety of summer events.

Persona 5: The Phantom X applied its Version 5.3.1 update, "Guitar Melodies Brushed by the Ocean Breeze," on August 20. Through this update, the drop rate for the new 5-star swimsuit character 'Ayaka Sakai - Summer' will be temporarily increased. In addition, the main story for the summer event, "Summer Training Camp Trip," has opened. The story follows the Phantom Thieves, who were setting off on a training camp trip to "Shirosato Beach," as they meet "Ayaka Sakai," who is feeling down after having her original song stolen. Supported by her companions, she declares war on the thief who stole her song and heads to the beach.

The update also introduces new event content, "Battle for the Dice of Destiny." Influenced by the complex desires of human society, "Vessa" plans a "Tycoon" reality show on the sandy beach, where players aim for ultimate victory by acquiring properties, engaging in combat, and clearing events to gain more currency. In-game optimizations and detailed adjustments were also implemented, with full details available on the official website and game lounge.