Sen Corporation (Head office: Chiyoda-ku, Tokyo, President: Nobuaki Chiba), a company that takes photos of various events for educational institutions such as kindergartens, nursery schools, and elementary schools, as well as sports groups and companies, and sells the photos on the Internet with "Yes Cheese! (Head office: Chiyoda-ku, Tokyo, President: Nobuaki Chiba), a company that provides a wide range of services including photography of various events, internet ...