For those that watched the latest Valvrave episode, #8, Haruto made a comment to L-Elf that
"I (Haruto) am the cream to your (L-Elf) coffee". What he meant was that although coffee is bitter, like L-Elf, by adding some cream on top the drink tastes much nicer, and that was Haruto's subtle way of agreeing to team up with L-Elf.
This was requested by Reverie Metherlance: