第 4 集: 女孩們造訪海灘，小泉京子擔憂山田健太的警官哥哥
2015年4月24日 播出
The girls go on a trip to the beach, where Kyouko Esumi, a former delinquent, becomes concerned about classmate Kenta Yamada bringing his brother, a police officer who had developed a crush on her. (Source: Wikipedia)