This is a plan to utilize an old house in Wakimachi, Mima City, Tokushima Prefecture, as a tourist exchange facility. The area in which the building is located is affectionately known as "Udatsu Townscape" and is designated as an Important Preservation District for Groups of Traditional Buildings. Many tourists visit to see the townscape that retains the landscape of the early modern and modern eras, but the short stay time, such as day trips, has been an issue. On the other hand, in recent years, the number of young people who move to the townscape, who are attracted to the scenery of the townscape, has increased, and guesthouses and restaurants have gradually begun to appear in the townscape. In order to increase this momentum and solve the above-mentioned issues, the renovation plan was made to convert the city-owned old house into an incubation facility with functions such as a bakery, challenge shop, gallery, and community space, as a new place of consumption that fills the gap in the stay time of accommodation and restaurants in the townscape. In the plan, the large roof with curved bellows plaster and curved roof that form the landscape of the townscape gives off a soft impression that is contrary to the solid structure of the real tile roof and white walls. We thought that a design based on curves like bellows, round flat tiles, and namako walls would harmonize with the soft image of a bakery, so we planned the interior to unfold in a gently curving, streamlined form that would naturally draw users deeper into the building. The staircase leading up leads to a counter that is continuous with the first floor, connecting each space and giving the entire building a sense of unity.