Mimi Yoshizumi[]
As her Older Brother it is his duty to look after her, they have a good relationship, He has shown Great Trust in her as shown when he begged her to appear in the Cosplay Episode of Dig Deep one Chance.
Ruby Hoshino[]
Shun was the deputy Director of Dig Deep One Chance where Ruby Worked for a while He supported her as best as he could and at some times he thought that she was flirting with him, After the disaster that was the Cosplay and the sexual harassment of Meiya Ruby gave Shun a Proposal for a follow up episode where they would find out why the Cosplay of Tokyo Blade was cut so Meiya would understand
After the Episode Shun quit his job and became Ruby's personal Manager.
Tetsu Urushibara[]
Shun used to work for him and he did not like how old fashioned and rude he was, he hated how he would talk to everyone, he hated when his boss verbally abused him and power harassment, and after the disaster that was the Cosplay Episode of Dig Deep One Chance Shun had enough and called Tetsu out for his sexist questions. After Meiya retuned and the scandal was dropped he quit as he didn't want to work with Tetsu anymore.
Meiya[]
Shun was very Professional with Meiya and was honored that she came to Cosplay on Dig Deep One Chance, However due to the Copyright Team failing to secure the right to do Tokyo Blade Cosplay they had to change at the last minute, this offended Meiya as she had stayed up late every night preparing her Costume, things got Worse when the Questions Meiya got asked were very inappropriate as they asked her personal questions like has she had sex whilst Cosplaying, this angered Meiya and she posted a Tweet about her treatment adn it started a Scandal, this was due to Tetsu Urushibara who wrote the questions.
Shun called her several Times to Apologies and he begged her to Delete her Tweet but she refused as the world needed to know.
Shun fixed things with the Help of Ruby and Kana, Meiya returned for another episode and Ruby asked her about what the interview was like for her and after seeing Tetsu Cosplay Meiya Forgave him this fixed her relationship with Shun and the team and she deleted her Tweet