I understand that English is not your first language and you appear to have used a translation program for your special section between the lines of stars. I would like to help update that for you to make more sense to an English native speaker. I hope this helps.

Until midnight South Korean time (GMT +9) on April 16th:
Get special benefits when you achieve 100% of the Steam Challenge achievements. Ending screenshot certification required.
I hope you enjoy playing it.
Any use of abnormal programs will result in a blacklist by BlueHon for 1 year and entry to any Giveaways hosted by BlueHon will be strictly prohibited.

Especially that last line needs to be changed. "Blacklist BlueHon for 1 year" reads like you are telling people to blacklist you, instead of your intended purpose of telling them that you will blacklist them if they cheat.

Thanks for the giveaway Bluehon.
Much appreciated.