Ginormous Size Difference

it’s not humanly possible.
exact height difference: unknown

exact height difference: 25 cm (~10 inches)

exact height difference: currently unknown; season 1 completed

exact height difference: unknown
series completed

exact height difference: not given (probably around 15cm though)
1st story only,

this has multiple stories. most have a significant height difference.
the main story has a difference of 27cm by the end (started at 20cm)

oneshot (might get a part 2)
height difference: 30 cm

I don’t think we get an exact difference but it’s 50+ cm for sure

exact difference: tbd
the smaller one is the top.

tw (including novel spoilers which may or may not be incorporated into the manhwa; not all encompassing): pseudo-imprisonment, noncon (coercion), sexual abuse, sexual slavery, gaslighting, victim blaming (note: taking revenge on the son when the father did the wrong)

honorable mention.
height difference is probably 10ish cm. but due to their physique difference the bottom looks tiny sometimes.