Pure Semicircles is a preparatory and cram school in Osaka, Japan. The institution focuses on creating a leaning space which stimulates student senses to help them dive into their lessons while still providing a cozy and relaxing environment. The space features semicircular shapes in a variety of aspects and dimensions. The reception space is a semicircle reflecting on a mirrored median wall to become a full circle. The ceiling is covered in a rippled stainless steel that extends the space further onto the third dimensions while being highlighted with a surrounding linear indirect light.

Tetsuya Matsumoto is the founder and Head Architect Designer at KTX archiLAB based in Japan, and a Lecturer of a space design course at Osaka University of Art. After graduating from the same university, he specialized in commercial space design and built a large portfolio of projects varying both in type and scale, from shops and restaurants to offices and clinics, and from a small pharmacy to a large Hospital. Tetsuya has received more than a hundred local and international design awards and became a jury member for several prestigious prizes.

Seigakusha is the company that oversees the kaisei education group that specializes in Cram school and preparatory schools for final exams. The group was created in 1982 and grew up to welcome more than 27000 students annually from various levels of the Japanese education system. The groups spans geographically to cover prefectures of Osaka, Shiga, Kyoto, Hyogo, Nara, Tokushima, Tokyo, Kanagawa, Saitama, and Chiba.