Echocalypse Scarlet Festival is in full swing! New summer swimsuits are here! Meet girls by the seaside and unlock brand-new coastal encounters! On August 22, the Water Element MR Coordinator [Clara] arrives with her exclusive summer swimsuit [Enchanting Waves]! The incredibly capable mountain rescue team captain is actually a mischievous snow monster girl who loves watching people fumble? Come meet this special girl this summer! Log in during the new version to choose your UR Case + exclusive Vibration Arm + Neolith. Sign-in rewards, Diamonds, and endless perks up for grabs! Starting September 1, sign in for three days to receive the new MR Case [Sana] and her exclusive Vibration Arm! Through the heatwave, echoing with you! This summer, come to the Scarlet Festival and make waves together! — Eternal Oath, Everlasting Love — They are your steadfast comrades and your emotional anchors. Encounter maidens of diverse personalities, collect Oath Tokens, and dissolve the barriers around their hearts. Experience exclusive stories and forge an unbreakable, eternal oath with your favored Case. Present the ring and let them don the bridal attire of love! — Witch Interaction, Intimate Whispers — Your once-resonant partners have lost control, transforming into [Witches]. Within the [Witch's Den], destruction and salvation intertwine. Are you ready for this journey of unknown bittersweetness? The special gameplay [Witch's Den] not only diversifies your lineup and boosts combat power, but also offers exclusive plots and unique interactions. Distinct AI-driven dialogue breathes soul into them. Speak directly with girls and create moments of intimacy! — Easy Play, Massive Draws — Explore the rich and engaging Dorm system—a warm sanctuary for the maidens. With Auto-Battle, Quick Blitz, and a suite of QoL optimizations, dailies can be cleared with ease. Various casual mini-games provide massive resources without the grind. Newbie benefits include 100 free draws delivered instantly! — Zero Loss, Smooth Growth — Tired of frequent updates and resource shortages? The growth system of Echocalypse supports quick replacement while inheriting all levels and Equipment stats. Transition smoothly between Cases with zero power loss. Invest boldly and build your ultimate team without wasting a single resource!