Top 13 in Top 20 best yuri manga stories today.
Yuma Okazaki and Hotaru Mizushina are childhood friends. Previously, Yuma would protect Hotaru from bullies, but in high school the roles were reversed. After having her first boyfriend, Yuma asked the more sexually experienced Hotaru for advice on kissing. Hotaru gave Yuma a deep kiss, leaving a lasting impression on her. Now, Yuma worries whether her boyfriend will find out about her affair with Hotaru, and worries about getting Hotaru into trouble with her own boyfriend.