To translate Japanese ROM such as "天地の剣" into English, please set as follows.
First, open "天地の剣" with FEBuilderGBA.
Then, start the ROM translation tool.
Since the "天地の剣" is a remodel of FE 7..
For FROM, specify unmodified FE7J.
For TO, specify unmodified FE7U.
Then, just press the button.
Please apply from anti-adaptation tool to adapt anti-huffman and draw single font.
It will take about 10 minutes or so, please do also at jogging.
As you come back from the jogging, the conversion will be over.