Hai to Gensou no Grimgar

Synopsis

Mary has a dream of reuniting with her friends Michiki, Og, and Mutsumi. As Haruhiro wakes up Mary, she leads Team Haruhiro away to safety, since they would be at a disadvantage in the farm land as an open field. Team Haruhiro stops for a rest in the ruins of a temple, where Mary had her traumatic experience in the past. The party's rest is interrupted by three undead, the reanimated corpses of Michiki, Og, and Mutsumi, all of whose bodies were not cremated after death. The rest of the group manages to fend off the three undead long enough for Mary to purify them each. Haruhiro discusses with his group about what they should work on as warriors. Their relief is short-lived as Death Spots suddenly appears, forcing them to flee. Team Haruhiro is chased through the caverns and narrowly manages to escape through a well, although Ranta is cut off and left behind to face Death Spots by himself.

(Source: Wikipedia)