SundayToz Corp, formerly Hana Green Special Purpose Acquisition Company, is a Korea-based company principally engaged in the development and supply of game software. The Company operates its business through development and supply of mobile social games for Kakao platform as well as personal computer (PC) social games for Cyworld and Naver Web. It also involves in the PC game advertisement services. The Company mainly conducts its business in the domestic market. The Company was previously formed for the sole purpose of merging with existing companies. On October 18, 2013, it merged with SUNDAYTOZ Corp.