Title : Praesidium tridacnaeGenre : グレイスPMS: http://manbow.nothing.sh/event/event.cgi?action=More_def&num=26&event=130Event :SPRING 9KEYS BLOSSOM 2020Artist : Nego_tiator https://twitter.com/Nego_tiatorDTMhttps://soundcloud.com/nego_tiatorBGA : tsukikawa https://twitter.com/tsuki_worksYouTube : https://www.youtube.com/watch?v=n4wKrDNkIWo