While they are inside the homunculus , Envy reveals that Gluttony is an imitation of the gate that appears during Human Transmutation .
After a brief fight , Edward , Lin , and Envy are swallowed by Gluttony .
While they are inside the homunculus , Envy reveals that Gluttony is an Gluttony of the gate that appears during Human Transmutation .
After a brief fight , Edward , Lin , and Envy are swallowed by Gluttony .