Tsubasa Hachino and Mika Kurosaki are ex-lovers. One day, when she returns home from her cohabiting'Tsubasa', she suddenly gets a call from her ex-girlfriend'Mika'. The two of them feel very awkward at Tsubasa's house, even though they are excited about the reunion after a long absence. Meanwhile, Tsubasa started asking, "Would you like to stay?" A runaway triggered by Berokisu who had been stuck, fingering from morning till night, repeating lesbian kissing, all records of 3 days crazy.