This site is on the boundary between land and sea, Here, I challenged the conception of putting a sustainable and flexible structure that could endure the harsh circumstance. And as the curriculum called for digital design, I planned to find ways to make abstract fractal images with two attractors, which seemed reasonable because the situation was on the boundary where two distinct conditions meet. Then, using software, I could get some three-dimensional fractal images. It would provide the platform to be built on the computer. To achieve flexibility, the structure managed to form several tubes creating structure, roof, and floor. Each tube structure counterbalanced with other tubes. Some tubes are covered by surfaces for protection, while others remained just wire frames, which could give it adaptability for activities such as fishing, exhibition, or gardening.