Responses
It happened somewhere between 15 chapters ago I think and it's because they switched it on purpose or some shit but didn't get rid of yi yis specimen and didn't make it a baby. Yi yi got some of brown hairs hair and tested rou rou and him have a 99.9 match. Though honestly hair would never work unless you get the root and all because dna isn't in hair strands, it's in the follicle and skin at the bottom of the strand.
I'm really reallyyyyy curious. Are they both the father of RouRou? Give me answers please ㅠㅠ