I-cup office beauty Himesaki Hana gets aroused by lucky accidents and unexpected body contact. During overtime, she tries to escape a manager she hates, but his hand lands squarely on her most sensitive nipple. A moan slips out, and she ends up accepting his harassment and having sex with him. On another day, accidental touches with the director she adores happen in a car and by the roadside. Turned on when he grabs her breasts, Hana visits his home, gives him a titjob with her massive chest, and follows it with intensely passionate sex.