Often, light novels in the Japanese market touch on cultural themes as well. This might include concepts like respect for elders, which could be related to the 'onii chan' in the title. Additionally, if there are any magical or supernatural elements in the story, themes of good versus evil or the balance of power in such a world could be present.
Well, 'Konosuba' is also a great light novel. It's a comical take on the isekai genre. The characters are all misfits and their adventures in the new world are full of hilarity. These light novels, although different from the one you mentioned, might be something you'd enjoy if you like the general idea of light novels.
You can try looking for it on popular e - book platforms like Amazon Kindle or Barnes & Noble Nook. They usually have a wide selection of light novels.
Since I'm not familiar with that particular light novel, it's hard to give an exact similar one. However, if it's a slice - of - life or romantic light novel, you might like 'Toradora!'. It has a great story about relationships and character development. Another option could be 'Kaguya - sama: Love is War' which is also about the relationship between two main characters in a unique and comical way.
Well, you might come across stories that focus on historical events involving the two countries, or fictional ones where superheroes from each nation team up to save the world. There could also be tales of economic competitions or cooperative efforts in science and technology.
Well, you might find one where an old man is trying to carve the turkey but keeps messing up in a funny way. Another could be him getting lost in the Thanksgiving parade and having all sorts of hilarious adventures.