Adachi and Shimamura, two young women who attend the same high school, are inseparable friends. Whether playing table tennis, chatting about favorite TV shows, or just relaxing together, they're happy to share their days. When Adachi's friendship turns into romantic attraction, the relationship begins to change, one day at a time. This beloved yuri series has been charming audiences in Japan for years, and now read the original light novels in English.