I think it was the original publisher's decision, not tappytoon. A few others were removed too. From what I could tell they're mostly on Daum webtoon in Korean. Since that site doesnt have a direct English equivalent I'm kind of hoping they're coming out with their own so thats why they want their comics back. Even if they do its really annoying tho because I'm sure it'll start back at ep 1 and take years to catch up to where it was D:
Man I'm kinda sad and pissed tappy is removing it since the series is still going for them to complete, there's 283 chapter + Epilogue & tappy only has 239, I really wanted to read the last chapters, Epilogue & review by the author....now we aren't gonna get it & I'm gonna be so impatient I NEED TO KNOW WHAT HAPPENS IN THE LAST & EPILOGUE CHAPTER AHHHH