Osamu is the father of Misa, Samatarou and Meme and husband to Venus. Osamu appears as an older man, who acts playful and appears to be a loving husband and father, albeit a somewhat odd one. When in his workplace in the heavens, Osamu's main occupation appears to be the granting of human wishes. Before Samatarou started showing his own initiative to get what he wanted, Osamu frequently spoiled his son and heir, granting his every desire instantly, even if Samatarou didn't particularly want him to. Because Osamu tends to go overboard when granting his son's wishes, he frequently embarrassed his child. Since Samatarou started moving forward by himself, Osamu has stayed in his workplace, doing his own job. He doesn't object to visits from his family, however.