Kagachisama+onagusame+tatematsurimasu+remaster+exclusive -

Possible that "kagachisama" is a combination of "kaga" (house or clan) and "chisama" (a humble suffix). So "Kaga's Lord" or similar. Combining with "Music Sword" and building a shrine, maybe a story about a shrine built with music and sword elements, under the lordship of Kagachisama. The remastered edition exclusive would be a special release.