Hatenkou Yuugi EP4 - Must Not Violate Paradise

During a rain storm, Rahzel, Alzeid and Baroqueheat are taken into a mansion for a night where two sisters live. The older sister, Madeila, does not want them to stay, but her younger sister let them in. The younger sister asks Alzeid and Baroqueheat to follow Madeila into the cave near their mansion if she goes searching for her late grandfather's treasure. Madeila asks Rahzel to accompany her in searching for the treasure and they all head out during the rain storm. In the end, the treasure turns out to be a fossil of a winged creature which reflects the morning light. Remembering this, Madeila is inspired and is going to run away from home for the time being.