Oh wow, there's a sequel? I did look up the author page on bakaupdates but just a glimpse, i thought that work of his during 2018 was his last one. But seems like it was since 2021 that a sequel was made. Sad to hear that Naoki's a broken shell of his former self, guess it made some sense that he is since we learn he resolves himself to not cry but being sad sometimes is okay.
Back to the point, I want to comment more on the series but got completely side tracked. Main volumes had their last 3 chapters quite rushed but I think I appreciate those more now that I've read the extra volume.