[blade82]

Originally Posted by vansonbee

I have a theory on Hilda personality change and how to reserve it (not via Beel).

Spoiler:

When Oga kisses Hilda under the mistletoe, her personality will revert back to normal. So it doesn't have to be specifically a kiss from Beel (finger's cross).

This way the author can drag and play with her moe personality.

i think you are right because the link between Oga and Beel is so strong that they body fused together and they swap with each other