The ending point of the Tomo-chan anime in the manga can be a bit tricky to determine. Sometimes, the anime might condense or expand certain storylines compared to the manga. You might need to do a detailed comparison to figure it out precisely.
I don't know for sure who Tomo is in this context. It could be the name of a person who is the translator or the founder of the translation project related to these novels.
A 'tomo graphic novel' is a form of graphic storytelling. In a tomo graphic novel, you'll find a combination of illustrations and text that work together to convey a story. The illustrations are not just decorations but an essential part of the narrative. They can show emotions, actions, and settings in ways that words alone might not be able to. Some popular tomo graphic novels have been adapted into movies or TV shows, which shows their broad appeal. These novels can also introduce readers to different cultures and perspectives, as they can be created by artists from all over the world.
Most likely not. 4chan is known for having a lot of fictional and often disturbing content that is made up by users. The '4chan dead girl story' is probably just another one of those made - up tales.
As we don't know the full details of the 'isekai wa smartphone to tomo ni' novel, it's challenging to give exact similar novels. But if it has a modern - world - meets - fantasy - world aspect, perhaps 'Ready Player One' could be considered in a way. The main character enters a virtual world which is different from his own, just like the isekai concept of going to another world. However, this is just a loose comparison as we lack specific details about the original title.