Ryū serves Angel's Tip to a young dating couple. The man claims to be a doctor, but his behaviour causes Ryū to suspect that he is a con-man, seeking to cheat the woman. The man challenges Ryū to perform a "taste test" with five glasses of water containing a drop of a different pastis. Ryū turns away and he switches the positions of the glasses and Ryū has to guess the names of the drinks. Ryū correctly identifies the drinks, including one glass where the man added a second pastis. Having lost the challenge, the man does not continue his charade with the woman. The featured drink is "Pastis Water".