BERMUDA TRIANGLE: KAREN ON STAGE♪

Based on the ever-popular clan Bermuda Triangle from Cardfight!! Vanguard, this story is about the daughter of a world-renowned diva who aspires to one day become an idol as well. Throughout her journey, she encounters various friends and rivals as she perseveres toward realizing her dream. (Source: Gekkan Bushiroad, translated) — Description from AniList community (anilist.co).