<https://s.mj.run/fq2ZN-nlAjg> A black background with a large yellow circular logo, featuring the Chinese character "雷" in the center. Above the logo, the text reads "二刀流第十八代目" in the same font style as the original. The overall design should retain a traditional Japanese calligraphy style, similar to the original image, with bold, clean lines and a symmetrical layout.