During summer vacation, Azuki goes to her friend Yukari's house to do homework, only to find out that Yukari's family is away on a trip. The two, who secretly harbor feelings for each other, were bound to have something happen... Driven by curiosity, they playfully try a kiss. Their innocent lips and tongues gradually heat up, eventually crossing a line that should not be crossed. A secret lesbian act between just the two of them...
