First the manga has almost the same story until like 50 chapters and then it takes a major change from the anime. [spoilers] The manga is for the people who wanted a sweet ending with zero two and Hiro both alive and staying together. The anime had a bitter sweet end with both of them dead but staying together. The manga learnt from the anime’s mistake by not adding the VIRM hence not rushing it. But even when they removed the VIRM part the manga felt rushed, it could have used like 5 chapters more to give a full end with a epilogue. Even if u have seen the anime the manga doesn’t feel boring bcoz of the “IF” moments added. Overall if u don’t have anything to read and want to read a good short manga then this is for you.