Sean Obihiro, known as Shun Obihiro in Japan, is a orphan who then turned into Gospel's leader. It is revealed in MegaMan Battle Network 2 after you defeat Gospel (Final Boss, Gregor lookalike) that his family died in a plane crash and he became an orphan. So he created Gospel. When he explains to Lan about his family, you see him holding a photobook. In MMBN3 (Megaman Battle Network 3) Sean, was visiting Mr.Hikari inside the Beach Hospital telling his story to him. From MMKB, a Wikia wiki.