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In Extra2, a long Extra which was actually scheduled for 2025/2026, but it's still not released, yet. So 2027 is possible too now. She kind of hinted 3 children on X, but we will see.
Originally they should have appeared in the epilogue, but the author changed her mind while the webnovel was still ongoing, and wanted to put it in a long Extra.

Yall I‘m not that far in the novel can someone pls tell me if Dane and Grayson are rlly gonna have a child in the future?