Yoi no Hana

Yui got dumped because of her age, so Yuuma, who she's fond of like a little brother, joins her for a drink. She recounts a story about when he made a promise to her saying, "I'll get married to Yui-oneechan!" when they were young, and then she starts seducing him. He is unable to stop the drunken Yui from going wild, and then she suddenly strips!...