Triangle Heart's Sound Stage X ~OVA Series & Radio Stage Preview~Triangle Heart's Sound Stage X ~OVA Series & Radio Stage Preview~Triangle Heart's Sound Stage X ~OVA Series & Radio Stage Preview~

Disc 1

1. 1 - Prologueプロローグ (0:21)
2. 2 - Trust You're Truth ~Promise to Protect Tomorrow~ (OP size)Trust You're Truth ～明日を守る約束～(OP size) (1:41)
3. 3 - Triangle Heart's Radio Stage Broadcast #0 (A Part)とらいあんぐるハーツ Radio Stage 第0回放送(Aパート) (7:15)
4. 4 - Sound Previewサウンドプレビュー (5:44)
5. 5 - Triangle Heart's Radio Stage Broadcast #0 (B Part)とらいあんぐるハーツ Radio Stage 第0回放送(Bパート) (12:12)
6. 6 - My Gentle Days (Fullsize)My Gentle Days (Fullsize) (4:41)
7. 7 - Triangle Heart's Radio Stage Broadcast #0 (C Part)とらいあんぐるハーツ Radio Stage 第0回放送(Cパート) (3:23)
8. 8 - Trust You're Truth ~Promise to Protect Tomorrow~ (Fullsize)Trust You're Truth ～明日を守る約束～ (Fullsize) (5:26)
9. 9 - BGM "Gasping Shadow and Footsteps"BGM「息づく影とその足音」 (3:34)
10. 10 - BGM "Crushing Steel Obtained"BGM「手にしたのは打ち砕く鋼」 (2:48)
11. 11 - BGM "That is the Meaning of Fate"BGM「それは運命の意味」 (3:32)
12. 12 - BGM "Return to My Heart"BGM「この胸に還って」 (3:17)
13. 13 - Go, Shinobu Tsukimura ~Good Luck With the OVA~ (Secret Track)月村忍がんばる ～OVAよろしく～(シークレットトラック) (2:57)