Yui is a cute, devilish teenage bitch who mainly lives in Kabukicho. She's not yet ready to settle down to one guy, but she wants to fall in love a lot. She's less than a girlfriend, but more than a sex friend. I call her my "half girlfriend" because we Yui a good, unproductive but passionate relationship. We both love to get lovey-dovey, but we don't tie each other down. I hope this wonderful relationship will last a lifetime. That's what I think.