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Inheritable Relations

Updated for 1.13.*.*

aka "Unfinished Business"...
*Though the "Business" is "Unfinished", the mod itself is in fact Finished.

This mod enables the possibility of an heir to inherit their predecessors' relations when the time comes.
Now taking a crown comes with its unique diplomatic benefits and challenges, depending on the previous holder's relations and how close you two are related.

A character's friend will be marked as a potential friend of your heir after succession, along with a +30 opinion boost.
They would be much more likely to become friends assuming they don't have a particularly bad relationship prior to the succession.
While certainly not guaranteed, with some effort and luck, one could maintain friendships between two lineages for several generations.
The same goes for the predecessor's rivals (Marked as potential rivals with a -30 opinion penalty)

Note: only the primary heir of a character will inherit their relations. A character can only get their relations inherited once per lifetime. However, one could inherit the relations of multiple predecessors.
All opinion modifier, positive or negative, lasts for 10 years (values decays over time)

Best friends and nemesis are much rarer than their ordinary counterparts (In vanilla, Less than 5% of friends will later become best friends). Thus, it is only fair for the characters involved to value these special relations more.
A character's Best Friend will become the friend of their heir after succession, provided they don't have a particularly bad prior relationship (E.g. rivalry or opinions lower than -30).
If they cannot become friends because their opinions of each other are too low, they will become potential friends instead. (Along with a mutual +60 opinion boost to help them get along)
The same logic is also applied to nemesis, just the negative version.

*Only adult heirs can directly inherit friendships (become friends on succession) to simulate child heirs' lack of exposure to the relations of their predecessors
*Direct inheritance of friendship can be turned off in Game Rules if you feel it's not balanced due to Ritualized Friendship tradition.

Not all heirs are judged equally. The rules stated above only apply to those who are perceived to be closely-related to their predecessors.

-Closely-Related: A character's non-rival Close Families, Spouses, Best Friends and Soulmates are considered to be closely-related to that character. In addition, their heir's opinion of them also needs to be greater than -30 for them to be willing to take up the mantle.

-Loosely-Related: An heir would be considered as loosely-related to their predecessor if they are of the same dynasty or are extended families to each other. Those who would otherwise be considered closely-related but don't like their predecessor enough would also fall into this tier.
Loosely-related heirs are not favored/judged to the same extent. They would get +10 and +20 opinion of their predecessor's friends and best friends respectively. Same logic for rivals and nemesis.

-Unrelated: Those don't fit into the previous two tiers are viewed as unrelated to their predecessors. Their predecessor's relations will not have an effect on them.

Nemesis and Rivals with forgiving trait will not become rival or be marked as potential rival on succession. However, relevant opinion penalties still apply.

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It adds over 60 opinion modifiers related to character relations and interactions to make AI characters feel more real.

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-Other mods
-Social Relations Expanded
-Unfinished Business (This mod)
-Rescue & Vengeance (optional)
-Dynamic Regency (optional)
-Social Relations Expanded Lite (optional)
-Other mechanical mods / Overhaul
-UniUI (optional)
-end of the load order

Compatible with practically any mod.

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Join Expanded Mod Series Discord for future updates

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Translations:
Simplified Chinese (Special thanks to 牛奶大魔王)
French (Special thanks to grobubon)