★The 4th installment of the super cute little sister series! I like my friend's little sister and I start going to her house almost every day. I can't stop thinking about her breasts and body touching...★My friend's little sister is just so cute! Yui-chan shares a room with her brother (friend). She shows me her panties and breasts without any hesitation...but what is this!? I bring some alcohol as a present and hold a birthday party. Maybe I can do something nice with the drunk Yui-chan...?! "Everyone around me has a boyfriend, but I'm the only one without one, so I'm lonely" I can't hold it in when I see that sad face! I forcefully kiss her! I take off her panties and lick her! I thought I was going to have sex with Yui-chan, who is feeling so good, but...!!