The main protagonist Sendou Aichi, is a timid and mundane third-year middle school boy. The thing that supported Aichi's heart, was the "Blaster Blade" card that he received as a child. It's an important rare card from "Vanguard", a card game with the imaginary world of "Planet Cray" as its stage. From the day he reunited with the person who gave him that card "Toshiki Kai", Aichi's everyday life began to change. (Source: Crunchyroll)

A Japanese voice actor. She's also a certified junior and senior high school teacher.

Hirohashi was born in Niigata Prefecture, and her family's home was a Buddhist temple. Because of this, she attended Ryukoku University in Kyoto, a Buddhist university. In the middle of her first year, however, her parents told her that she could do what she liked, even if it wasn't related to Buddhism, so she sought out what she wanted to do. During her second year, she remembered a radio show she used to listen to in middle school and became interested in voice acting, so she started going to the Aoni Coaching School Osaka while attending university at the same time. The radio personality she had listened to in junior high school was a voice actor, which inspired her to become a voice actor herself.

Non-anime roles:
• Mast - Goddess of Victory: Nikke

A major event known as "G Quest" is to be organized by the Federation of International Vanguard Associations (FIVA) this autumn. Those who conquer six Branch Quests will be honored the title "Generation Master" as well as the chance to become a Clan Leader. While members of TRY3 are all excited by new goals ahead, a massive conspiracy that would lead to the destruction of Vanguard has been secretly set in motion. 

(Source: Anime News Network)

A new generation of Cardfighting is about to begin. Chrono Shindou is your average middle schooler. His looks make people afraid of him, but he has a kind heart and is loved by children. One day Chrono opens his locker and finds a Cardfight deck no one has ever heard of: Gear Chronicle. Chrono takes it to the nearby Card Capital 2 where he meets one Kamui Katsuragi. Kamui teaches Chrono how to play the game and opens the way for Chrono to gain new friends and rivals solely by having fun, including soon to be teammates Shion Kiba and Tokoha Anjou. (Source: Anime News Network)

Aichi Sendou and the Miyaji Cardfight Club aim the win the national championship, but problems arise after the timeline has been rewritten and taken Kourin off the team. Now Aichi and company must find a way to get back to 5 members to compete while the Student Council tries to shut them down. Meanwhile Kai battles his own demons as he tries to figure out how to reconnect with his cards, and Kouji Ibuki must decide whether he wants to give up the game or find a new way to play that doesn't involve deleting others. (Source: Anime News Network)

Team TRY3 members Chrono Shindou, Shion Kiba and Tokoha Anjou move forward to their respective high schools. Each member forms their own team in a bid to decide their own future. The three protagonists are set to clash as rivals in the upcoming large-scale tournament titled U20 Championship. (Source: Anime News Network)

The history of -IF- world has been distorted and cardfights do not exist. Ibuki and Suiko get involved with Emi and Shuka.
 
A journey to regain the true history by four people begins—! (Source: Cardfight!! Vanguard Wiki)

A few months have passed since the VF Circuit, and Aichi is now in High School. However Aichi is in a different high school than most of his friends, a high school where the instructors focus on looking towards the future. One day Aichi admits he thinks Cardfight can be a future people can believe in, but in order to prove it Aichi must use his new deck, a deck in which Royal Paladins and Gold Paladins are combined as one force. Slowly but surely Aichi must gain friends through Cardfighting and help his new team win the newly formed high school cardfighting championships. 
(Source: Anime News Network)

Nagisa Daimonji