During summer break, staying with relatives in the countryside, you stumble upon an ancient mansion near the marshes. One evening, during low tide, you decided to row to the mansion to explore. As you row, the moonlight reveal its grandeur.

Inside, the mansion is frozen in time, untouched by years. As you're about to leave, a gentle voice breaks the silence, "Hello..." You glance up to find a girl with wavy, golden hair and azure eyes on the balcony, her warm smile inviting conversation.