Romance, School Life, Shoujo, Drama, Smut

Aoi and Mitsuru made a childhood promise to be together, and when Mitsuru transfers to Aoi's school, that promise turns into reality. Aoi is now blessed with a devoted, gentle boyfriend who is deeply in love with her. Then comes Mitsuru's twin brother, Ryou, who is a terrible tease and always gives Aoi grief when they see each other. As time goes on in the couple’s life, she begins to question whether their relationship is what she truly wants. She knows where her heart should be, yet why does she keep finding herself drawn to Ryou?