after arriving in tokyo, aina entered the international media institute (a voice actor training center associated with iam agency). while she had fun in her training and found it rewarding, there were still times when she was unconfident in her vocal abilities. however, after some encouragement from ryo horikawa (chief director of the institute) she started to have more confidence. this reignited her desire to become an anisong singer and voice actress after arriving in tokyo.