A man walks through a bustling Shinagawa on Friday night, hoping to pick up girls. He encounters many women walking alone but finds them difficult to approach due to their guarded nature. Despite his persistence, he finally succeeds when he meets a beautiful OL named Rensan. She seems receptive to his advances because she's waiting for her friend who left earlier, leaving her feeling lonely and thirsty. They decide to go drinking together, and as they get more comfortable, Rensan opens up about her recent breakup with her boyfriend. It appears that she's eager for new experiences and possibly looking for someone to fill the void left by her ex-boyfriend. This could be the perfect opportunity for our protagonist to take things further!