They're a really happy pair, don't you think?
A Happy Pair (ハッピーな二人組み Hapī na futarigumi mi) is the 4th unused track and the 30th song of the Triggerheart Exelica Sound Anchor Soundtrack.
This short and happy theme sounds quite appropiate for the Score Ranking screen on the games, but Warashi decided to use the ominous sound of silence for that.