Given that there's a whole Shen Jiu specific part of the fandom, it baffles me that tianjiu isn't more popular. Like this man's entire type is 'emotionally repressed beautiful cultivator' and you think he wouldn't take one look at shen jiu and crank up the seduction to twelve.
And Shen Jiu who has abandonment issues on top of his showing healthy affection issues, wouldn't look at an extremely clingy, freely affectionate demon and reluctantly see him as a light in the darkness.
Like I blame qijiu for being such a 'fated soulmates' couple but I love the tianjiu dynamic. Or zhujiu but tbh I like zhuzhi-lang for shen yuan a lot more.
Give the man a dorky demon husband, he deserves it.
(Also Shen Jiu affection perfectly lines up with traditional demon affection so I feel like he'd just have a small trail of accidentally seduced demons trailing behind him and we need to capitalise off that more as a fandom)
^THIS