@Doomer @naeris
I can't read japanese so I don't know the raw. The problem is the story isn't consistent? Map at page 5 said that is kingdom tier territory, but page 8 the mc said duke.
If we're using duchy tier then on page 9, based my understanding of japan mayor tier (ruling municipalities) maybe same as count tier and the mc father is baron tier.
Empire summerforth, duchy meesian (kingdom tier dissolved), county canale, and barony lamberk?
FYI an empire can consist kingdom tier territory (e.g. kingdom of Bohemia in HRE)