https://www.youtube.com/watch?v=uKIBoROG4CY
Check it out! They're part of the Color voice series!
The design for the Red character, Minato!: https://www.youtube.com/watch?v=RXmOqqIDgk0
His webpage: http://n.shop.vector.co.jp/service/catalogue/cevio_cvs/character_minato.php
The design for the Green character, Mikasuki: https://www.youtube.com/watch?v=hoelAM8v6yU
Her webpage: http://n.shop.vector.co.jp/service/catalogue/cevio_cvs/character_kasumi.php
I'm not a frequent editor here. So bear with me? Ha ha ha
Characters in order: Ginsaki Yamato, Ginsaki Koharu, Akasaki Minato, Midoriza Mikasuki, Shirosaki Yuudai, and Kizaki Airi