Did the chinese girl change or something?
EDIT: Seems like an opposite gendered clone, but its been years since I've read the earlier chapters. Good excuse to catch up IG lmao.
For anyone else wondering there is a roughly 4 year time gap between the present day and the past.
Kudou was 30 and his love interest was 2 years older (32), the ages are both mentioned when he first got the agency in Kowloon.
Earlier in the manga it was established that she was 32.
Timeline is something like this.
-4 Kudou is transferred to Kowloon.
-3 Kowloon is demolished. Original Reiko commits suicide.
-0.5 Yomei runs away to Kowloon.
0 Start of the manga.
Originals are 4 years older than doubles.