Hi MeruP
First of all, on behalf of the team and Hako's staffs we are deeply sorry for this incident. We as a forum do not encourage stealing other people works or credits and this incident was more of an oversight by us and a mistake from the team. We hope you'd be understanding that the team translated and released the work for the benefit of the community, which is already quite small due to Eroge/Visual Novels being a niche choice for entertainment, and we gain no profit whatsoever from this. From what I have seen, your project has not been released in any form prior to this and this project is translated mostly from Japanese to Vietnamese (with the first part perhaps being translated from your English version), thus I do not understand your argument that this release would be harmful to your project in any tangible way.
However, as a group that have been involved in a few projects before, we understand your feeling of being uncredited for your hard work. Unfortunately, since the project has already been released, any effort to stop it being circulated around would most likely won't have any effect other than causing more inconvenient for the readers who genuinely want to enjoy the work. Thus, with all due respect, we hope you would be fine with us continuing releasing it, of course with your and Ran's name on the credit this time.