One of the main themes is the struggle for survival. In the world of Chainsawman, the characters are constantly facing dangerous devils, and they have to fight hard to stay alive. Another theme is about identity. Denji, the main character, has a complex identity as both a human and a devil hybrid, and he's constantly trying to figure out who he really is.
One idea could be exploring the backstories of some of the minor characters in Chainsawman. For example, the lives of the other devil hunters who don't get as much screen time. Another idea is to create an alternate universe where Denji makes different choices early on. Maybe he refuses to make a contract with Pochita and has to find another way to survive in a world full of devils.
Power is also a very interesting character. She's a devil with a unique personality. Her self - centeredness and lack of understanding of human emotions make her interactions with other characters really funny and at the same time, quite complex. She has her own goals and motives that are not always clear at first.
Well, starting Chainsawman fanfiction is not that difficult. You should re - watch or re - read parts of the series to get a fresh perspective. Look for plot holes or unanswered questions in the original story and try to build your fanfiction around filling those gaps. For instance, if there's a character whose motives are unclear, you could create a story that delves into their past to explain their actions. Also, start small. Don't try to write a huge epic right away. Begin with a short story that focuses on one event or relationship in the Chainsawman universe.
Sure! A lot of manga publishers translate and release manga in English to reach a wider audience. You can find them in bookstores, online platforms, and libraries.