Childhood friend complex
</3 not quite
https://www.mangago.zone/read-manga/bring_the_love/
falling in love after marriage trope
fl was forced to marry to keep her power/title and picked the most menacing, expressionless guy but hes a softie at heart
https://www.mangago.zone/read-manga/the_looks_of_love_the_heart_has_its_reasons/
both leads had previous relationships that didn't work out :/ they heal and find comfort in each other before actually commiting to a romantic relationship
straight romance with main leads fostering a deep connection with eachother? like a really good dynamic duo, kinda childhood friends to lovers vibes? i’d love if it’s slow burn