No, she's telling them that because it's White Day miss will give out presents in return and Reimu's going to get a wild Marisa and the kids will get a surprise present.
Reimu's going to get a wild Marisa and the kids will get a surprise present.
Sorry but I'm holding a different view. Reimu was making her wild Marisa and little ones a surprise gift to the Miss in return of the present. According to the scripts, this is Reimu's dream where Miss accepted her husband Marisa and little ones and lived happily thereafter. But the next pic suggests something different. I think we need a delusional tag here.
Updated
Today is mister white day!
[Reimu] will give the Beloved miss a return gift!
The gift will be [Reimu's] wild Marisa and cute little ones, a surprise for [Miss]!After Marisa is back from Mister Hunt, everyone will be easy!Thanks to miss, Reimu is happy too!