[Yui Haruna's first performance is panty-flashing seduction!] "Hmm... I think I might like my childhood friend..." She has realized her feelings! But recently, he has been feeling cold towards her... The action she took to get him to notice her was... panty-flashing seduction! Boys like this kind of thing, don't they?! She is innocent but modest, but she boldly opens up about her feelings, and her panties get so wet that a stain spreads...