Well, you could look on platforms like Webtoon or Crunchyroll. Sometimes they have the manga you're looking for. Just make sure to check their library. Also, some fan-run sites might have it, but be cautious as their legality can be questionable.
Well, usually differences could be in the visual style, the way events are ordered, or maybe the emphasis placed on certain plot points. It varies a lot depending on who's doing the adaptation.
The main couple obligations in manhwa can vary. But often, it includes taking care of each other's feelings, working together to overcome challenges, and building a life together based on love and trust.
Well, for a couple of obligations manga, the differences could be in the way the action sequences are depicted, the level of detail in character development, or even the tone and atmosphere. Sometimes the anime might make certain plotlines more prominent or introduce new elements to keep it engaging for viewers.