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 Ama...