Responses
I felt that way at ch 51 - like why is he there? - and https://www.mangago.me/read-manga/become_the_lord_of_cthulhu/uu/nml_chapter-185/pg-1/
For ch 51, I can confirm that this is the original writing style... A bit confusing.

can you tell me who is this?
https://www.mangago.me/read-manga/become_the_lord_of_cthulhu/uu/nml_chapter-69/pg-51/
am i skipping chapter? why this character suddenly appear?