What is known
S18A Lion historian who survived the Battle of the Snow Plain and was assassinated before he could finish his chronicle of it. His absence is why the record of that battle is fragmentary. Neither Akodo Toronoko's account nor Matsu Sakura's mentions him.
S25His lost chronicle of the Battle of the Snow Plain was in the jar. The account he was murdered before he could finish has been in the ground ever since.