Title: 君は可愛い弟だから / Because You're Our Cute Little Brother
Circle: はいてんしょ~ん! / High Tension~!
https://www.dlsite.com/maniax/work/=/product_id/RJ282311.html
Circle: はいてんしょ~ん! / High Tension~!
https://www.dlsite.com/maniax/work/=/product_id/RJ282311.html