In order to harmonize with the surroundings, the museum, small hall, and large hall will be placed from low to high from west to east, on a green hill that gradually rises from the road level to the rooftop, which will become a park. The south side will be a transparent and open entrance hall (free zone), and the interior and exterior will be continuous, creating a lively space with the synergistic effect of each facility. The theme of the rooftop greening space is to create a space of remembering and recording the earthquakes and tsunamis, also learning with an Ishinomori character who will appear and rescue victims on a smartphone app.