Negima!? Dream Tactic Yumemiru Otome Wa Princess [Princess-Ban]

Whilst exploring the school library, students from class 3-A find an old and mysterious tome. After flipping the volume open, strange rays of light emanate from the pages and the pupils are enchanted and eventually fall asleep. Deep in slumber in the physical world, the girls are trapped in a dreamland and must escape from their predicament by way of tactical battles and interaction.