The idol chart is an idol ranking site that comprehensively analyzes the sexuality and the subjectivity of the singers (group) itself rather than singing through analysis of big data such as singer's music, music, broadcasting, SNS, You can see the artist at a glance. The main chart, 'Aka Ranking', 'Ranking Rating', 'Aka Report', 'New Song News', and 'Community Bulletin', which show the news of new recordings and singers, Arthur 'is served.