MIRARTH Holdings, Inc. is a real estate developer that was established in 1972. The company changed its name from Takara Leben Co., Ltd. to MIRARTH Holdings when it transitioned to the current holding company structure in October 2022. In the new built-for-sale condominium business, its core business, MIRARTH Holdings sells newly built family-size condominiums mainly to first-time homebuyers nationwide, and primarily in the Tokyo metropolitan area.