Tsushima Tenno Festival has been held every summer in Tsushima city, Aichi prefecture, Japan, for the past 500 years. One of the highlights of the festival is the evening festival called Yoi‐matsuri when five boats decorated hemispherically with a lot of illuminated lanterns come down the river. The distinctive shape of the hemispherical decoration reminds us of partially formed clathrin‐coated vesicles (CCV). So this summer, we dare to replace the decorations with the one which looks exactly like spherical CCV after completion. On the front side of the river, we place Y‐shaped structures modeled on the LDL (low‐density lipoproteins) receptor that mediates CCV's capturing LDL. The reflection of the light from the lanterns which represent CCV sparkles on the water surface of the river, and creates a fantastic summer night view. Designed by TRAIS Co., Ltd. (Kobe, Japan)