Sanae: Yuuu *swaying* Reimu: Our little ones are really taking it easy! *snap* Sanae: pyugi? *thump* Reimu: Yuwaaa! Sanae: Yue? Id hurds! Yu... Yun! Reimu: Just like I thought, Reimu's babies look like Reimu so they're cute! *yu yu yu* Marisa: Yuyu? What happened to the other little one, Reimu? Reimu: Yu? Yuyu? *glancing around* *shivering* Sanae: My feets hurt, but Shanae will do her best easy! *breathing*
...therefore, it means there will inevitably be a BAD END for her :(
Although I am curious as to how Reimu could even have a Sanae. If the Yukkuri wikia is to be believed, Sanaes can only be produced by a Kanako and Suwako, so therefore, that Reimu should not have been able to give birth to a Sanae.
But hey, yukkuri canon is whatever the hell the author wants, so never mind that...
Reimu is a miko, Sanae is a miko. Perhaps they share some common yukkuri genes, and a single mutation is enough to change a baby into the other phenotype?
Or it's a Moriya Shrine Conspiracy, Eirins shady new drug or Yukari's fooling around again.
For those not following this conversation, according to the currently established mythos:
1. Only a Sanae-uke, a Kanako-uke, or a Suwako-uke can have Sanae-types.
2. Sanae-ukes rarely seldom give birth to Kanako-types or Suwako-types, usually to their own type, and to the type of the other parent.
3. A Kanako-uke and Suwako-uke can only give birth to other Kanako-types or Suwako-types, respectively, but will usually produce Sanae-types (especially if they mate with each other) and the type of the other parent.
This comic may link the chain and explain that Sanae-types come from Yukkureimu. Depends whether Reimu did cheat.
I think it's implied the Reimu cheated. The second page had Reimu trying to reassure Marisa that Marisa is the only one she refreshed with, despite there being a Sanae hanging off the stalk.
Could very well be a bizarre mutation or gene, but it also wouldn't be unimaginable that Reimu cheated on Marisa.