Takeru Mitsuboshi is the voice actor (seiyuu) of Akane, the favorite character of Kae. He is Kae's childhood friend.
Takeru was first introduced in an event of which Voice Actors play the characters live in front of fans. Luckily, Igarashi won a ticket that allows Kae to go up the stage to talk to the VA and Takeru recognizes her the moment the two met. After the event, Kae and the boys were about to go home when Takeru's manager calls out to her. She then follows him to meet Takeru and the two had a reunion and to everyone's dismay, he later transfers to her school to get closer to her.