[PC][~2005] Anime-style Puyo Puyo/Tetris puzzle game

Platform(s): PC (Windows)

Genre: Puzzle / Tile-matching (plays like Puyo Puyo or Tetris)

Estimated year of release: Sometime around 2005

Graphics/art style: Definitely had a 2D anime aesthetic. I remember the menus having a dark color scheme, and there were anime-style character portraits.

Notable characters: I can't remember any specific names, just that there was a whole cast of different anime characters you'd face off against.

Notable gameplay mechanics: It had a dedicated arcade or story mode. The core gameplay was basically just battling these other characters in puzzle matches to progress.

Other details: I'm almost positive it was either freeware or shareware. It might have even been one of those obscure titles distributed on an old PC gaming magazine demo disc back in the day. Any help is appreciated!