On September 22nd, Houkago Princess took to the stage at Zepp Diver City in Tokyo, perform two one-man lives titled ~Twinkle~ (day performance) and ~Miracle~ (evening) respectively. It was during these very performances that Nagasawa Marina, Sekine Sasara and Kojima Mayumi held their coronation ceremony, the final step in crowning them as 'princesses' of the Regular Lineup for Houkago Princess.
Throughout the ~Twinkle~ performance, members wore their seifuku uniform, as well as newly debuted sports costumes, whilst in the evening, the members transformed into their Idol and Princess costumes. It was close to the end of the ~Miracle~ performance that the three former Candidate members were crowned, and fully initiated into the Regular Lineup along with the senior members of Houkago Princess.
It was also during the ~Miracle~ performance that the four members of Houpriyusu, Nagasawa Marina, Sekine Sasara, Kojima Mayumi and Horii Nina held their final performance together, before the three latest members were crowned. It was a heartfelt moment for the three new princesses, who were taking their steps forward whilst leaving Horii Nina behind as the sole member of Houpriyusu.