It's mainly about the daily lives and relationships of a group of teenage boys. The story focuses on their friendships, emotions, and experiences growing up.
You can try to check on some well - known digital game platforms like Steam. However, make sure it complies with the platform's terms and your local regulations.
The Kagerou Days Manga Story has a complex plot involving time loops, different characters' fates, and a mysterious world. It mainly follows the story of a group of teenagers with special abilities. There are conflicts, friendships, and lots of emotional drama.
I'm not sure specifically as I haven't read it. It could be about various things like the adventures of the characters during 340 days, or it might be a side plot that runs parallel to the main manga storyline for that period of time.