The original is a solid trance track on its own:
One interesting thing about Whatever is that this is *not* a favorite from her fanbase. According to the wiki article for this song, fans were given a poll to rank 30 Ayumi Hamasaki tracks, and Whatever was the 30th. In this forum, the original would rank highly, since not many original Ayumi tracks sound so trancy.
There's an alternative club mix available in HQ on Spotify under her LOVEppears release from 1999.