@Twia I doubt it's that deep. I think this is just one of those clickbait WN where the title become irrelevant after 1 chapter.
Note that the author of this WN is also the author of the one where MC traveled back in time to date his teacher, and the time travel part is irrelevant for 99% of that WN
@marfmamow
FYI the raw on author's official site is down scaled for some reason. But you guys can get the original resolution by removing the resolution at the end of the URL. For example
https://pom-official.jp/wp-content/uploads/1571967282-391x1024.png
Remove -391x1024 and you get...
@DeOneChester probably multiple times. But the clearest evidence is in chapter 16 and 17 when they're in a hotel to "take a break" and next chapter is "That wasn't a break at all"