Forum:Can I use dragon's mirror to summon blue eyes ultimate dragon when I use future fusion?

Guys I wanna ask a question??

I use future fusion to summon five-headed dragon in my turn. I discard my 3 blue eyes white dragon and 2 other dragon types in my deck to summon five-headed dragon.

Then I use dragon's mirror to remove from play my 3 blue eyes white dragon to summon my Blue eyes Ultimate dragon!

Then he says that I cannot use dragon's mirror when I use future fusion to summon blue eyes ultimate dragon easily...

please I need a answer now...

thank you all and good morning..!

Kerwin