Isekai Quartet (my version) (DISCONTINUED because I realized it's cringe)

!WARNING! - There's plot armor lololololol This is isekai quartet in my version. If you don't know what is isekai quartet, well, it is an anime crossover of four animes (Re:zero, Konosuba, Overlord and Youjo Senki). You might notice that all the animes are isekai genre (which is why the name is isekai quartet). Now my...