These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Defense Devil
Bellisario's Maxim: The implications of resetting time after fulfilling the contract. You won't have to think about the implications of the time resets for the unknown souls of minor characters. However, once time resets for a key member of the cast, you may be prone to quite a bit of Fridge Logic.
When Bichula finds out Kucabara has been giving him the only food available when the two are locked away without any food or water...while pretending he had already eaten enough. Bichula can't stop the tears when Kucabara keeps up the facade giving him food that is actually his.
You'll also find new, stong sympathy to Legato's and Kucabara's supposedly tyrannic father after chapter 92.