Yui, who enjoys saving money, has become impatient with the fact that her friends around her are getting married rapidly since she turned into Alaska. Then, she is approached by her boyfriend, Toshiya, who wants to meet and talk. Could it be a marriage proposal? Yui is elated, but not only Toshiya, but also Yui's best friend Asuka shows up at the meeting place...! A love story about a girl in her twenties whose life changes drastically after meeting an idol! 節約が趣味の結衣は、アラサーになってから周囲の友人たちがどんどん結婚していくことに焦っていた。そんな時、恋人の俊也に会って話がしたいと持ち掛けられる。もしかしてプロポーズ！？と舞い上がる結衣だったが、待ち合わせ場所には俊也だけでなく、結衣の親友の明日香も現れて――！？とあるアイドルと出会い、人生が大きく変わっていくアラサー女子のラブストーリー！