Airman ga Taosenai / エアーマンが倒せない by Team.ねこかん[猫] featuring 天乙准花 aka Junca Amaoto (JUNCA) From the Yosuga no Sora (ヨスガノソラ In solitude, where we are least alone) single Tsunagu Kizuna / ツナグキズナ featured as a BONUS TRACK! You can buy it here: http://www.1999.co.jp/eng/10125712 I didn't see this up yet as the single was released recently.