Aoi Bungaku Series

Sure! Here are the translations of the titles into Spanish:

1. Ningen Shikkaku - "Persona no Grata"
2. Sakura no Mori no Mankai no Shita - "Bajo el Cerezo en Flor del Bosque"
3. Kokoro - "Corazón"
4. Hashire, Melos! - "¡Corre, Melos!"
5. Kumo no Ito - "El Hilo de Nube"
6. Jigokuhen - "El Capítulo del Infierno"