Quantum Solutions Co.,Ltd. engages in the system solutions, contents development and distribution, software outsourced development, and eyelash care businesses worldwide. The company engages in system consulting, system integration, software development, and system contract development. It also operates eyelash extension salon, eyelash extension school, and eyelash care business for selling cosmetics. In addition, the company is involved in planning, designing, development, operation, and maintenance activities, as well as EV business. The company was formerly known as Bit One Group Co.,Ltd. and changed its name to Quantum Solutions Co.,Ltd. in August 2021. The company was incorporated in 1999 and is headquartered in Tokyo, Japan.