Your boon request has been granted! An in-character writeup will come shortly.

Note: as written, the familiar ability looks great, but I would like to personally specify that it doesn't carry over any hidden D&D familiar abilities. (That is, Shun can't cast his magic spells through his familiar, and so on!)

Further, while you are under no means obligated to take this option, if you want Shun to have a "magical bond" to his familiar - feeling each other's pain, or feeling a great pain when the familiar is lost - this can be done at no additional cost! (This is brought to you by Kari loving to torture her characters. Whoops.)