rikugo in particular is so.... much hes always putting the ox clan first whether its going to greet yoshitsune in sei's grandfather's stead so he can be by his daughter's side or requesting tsune's aid in seimei's journey ahead and eventually sacrificing himself to help seimei achieve his goals... aayughhghdh
i think in a way rikugo prob sees his "death" and sam's in the same way bc it really just is... returning to how it used to be... (the mana from seimei's grandfather being returned to him) except its not clear in what form he'd return in if seimei ever brings him back
like.. would he lose his memories? would he even be the same person w the same personality?? i have some personal hcs about it but in the end we dont know
i think this is basically the entire theme? of seimei's story... i like to think through kodoku seimei has the mana from all the bureau's onmyojis inside of him but bc one person cant handle it thats why it manifests as a curse thats eating away at him..
and technically the mana that made up rikugo is inside him too its like. "the people you love live on inside you" but in a more literal way and its like both a blessing and a curse to him...
getting into hc/theory but i think if rikugo was made up of mana of all the bureau's members then sei who beared the brunt of kodoku and took in rikugo's mana should have the same mana that it took to make him in the first place...
i like to think rikugo sacrificed himself while putting his trust in seimei to be able to bring him back... or something....