"Seiyuu GrandPrix" March issue was released on February 10, 2021. The cover of the magazine has featured the cast members from "The Quintessential Quintuplets ∬", which are Hanazawa Kana, Taketatsu Ayana, Itou Miku, Sakura Ayane, and Minase Inori. The appendix is the famous "Voice Actor List 2021" of the magazine. The "Voice Actor List" was first appended in 2001, which is 20 years ago. At that time, there was only 225 voice actress being published. Then, the number gradually increasing yearly, and the number of published voice actress has exceeded 500 people in 2008. In 2016, it has exceeded 700 people, and in the latest issue, it has reached 955 people, which is around 4 times more than the first issue. The "Voice Actor List 2021 Female Section" has a gorgeous specification as it has a total of 88 full-colored pages along with the profile of the 955 people, like their photo, representative work, birthday, place of birth, hobbies, and interests. Other than the female cast member of "Demon Slayer: Kimetsu no Yaiba" and "Jujutsu Kaisen", 48 people are newly published, which are the popular cast member of Liella! from "Love Live! Super Star!!" as well as the cast members of the hot project "D4DJ". The front-page article of "Seiyuu GrandPrix" March issue featured the gathering of the cast members of the quintuplets from "The Quintessential Quintuplets ∬", which are Hanazawa Kana, Taketatsu Ayana, Itou Miku, Sakura Ayane, and Minase Inori, since 2 years ago. It will have a detailed interview on the changes that they felt while acting the quintuplets of the Nakano household as well as the highlights of this work. There is also a Valentine project and a correlation chart, where you can see the relationship between the 5 cast members. "Seiyuu GrandPrix" March issue is priced at 1,480 JPY (tax included), and it was released on February 10, 2021.