Collection of Harta one-shots focusing on the theme of young men's secrets.

1. Natsu no Yoru (夏の夜) [Natsuko Takahashi]
2. Kake Meguru Ao (駆けめぐる青) [Kana Tarami]
3. Kurogami wo Mau Koro (黒髪を舞うころ) [Yumi Kurokawa]
4. Natsu no Sumire (夏のスミレ) [Jun Igarashi]
5. Hako ni Hibiku (箱に響く) [Miki Amano]
6. Child Game (チャイルド・ゲーム) [Fumika Higa]
7. Olivia no Iru Sekai (オリビアのいる世界) [Lun Lun Yamamoto]
8. Ai to Zubunure (愛とずぶぬれ) [Aoba Furuta]
9. Koko Dake no Hanashi (ここだけの話) [namo]
10. Yakusoku ni Kureru (約束に暮れる) [Kanae Yamada]