Composed by cosMo＠暴走P (cosMo@BousouP) as a CHUNITHM original, 'Blessings and Glory to the Last Piece' (ラストピースに祝福と栄光を) is the direct sequel to the composer's earlier 'エンドマークに希望と涙を添えて' (End Mark ni Kibou to Namida o Soete), which also appears in the maimai series. At a blistering 280 BPM, the track carries cosMo's signature high-speed composition style, relentless, densely packed, and built for the upper echelons of rhythm-game challenge. Before arriving in maimai DX CiRCLE on December 5, 2025, the song debuted as the final-stage (決勝) composition for the CHUNITHM division of KING of Performai The 5th, the cross-title tournament series uniting SEGA's three arcade rhythm games: maimai, CHUNITHM, and Ongeki. (The maimai division's own final song for that same tournament was '系ぎて' (Tsunagite).) Its title, evoking a ceremonial blessing upon a final puzzle piece, suits a championship-deciding track. In maimai, the song is represented across four DX-standard difficulties. The Master chart (level 14+, constant 14.6, designed by せめんともり) pushes toward 1,400 notes, demanding stamina and precision at the song's punishing tempo, while the Expert chart (level 12+, constant 12.9, designed by Jack) offers a dense but more measured challenge. The song was initially unlockable through the cosMo＠暴走Pちほー2 (cosMo@BousouP Area 2) event area before receiving a general release on February 6, 2026.