Shitsuji

Six girls including Tsukishima Yui were summoned into the end of Edo period by the power of mystic stones. They became celestial nymphs to protect cities from evils. Each girl obtained her own power. The power Yui obtained was word. She would fight against evils by her words that gave people hope. Source: AnimeNfo

* Based on a visual novel by 5pb and Nitroplus. In Akihabara a group of friends have managed to customize their microwave into a device that can send text messages into the past. As they perform different experiments, an organization named SERN who has been doing their own research on time travel tracks them down and now the friends have to find a way to avoid being captured…