Rodrigue wrote his essay on "Ubumwe Vol.44", an newsletterr of the organization which supports Dr. Kazuyuki Sasaki and his activities to help people building peace and reconciliation in Rwanda. The organization is called "Sasaki-san wo shien suru kai", which means "a society in support of Dr. Sasaki".

The title of the essay is "From Burundi to Rwanda, and to Japan". In the essay, he wrote about his life before going to PIASS, his wish for realizing peace, and what he wants to do in Japan.

You can read his essay from here. (It's all in Japanese)