Son Moah, on one day, had unfortunately fallen into a dungeon and awakened as a collection hunter. Son Moah would then somehow be revived, an opportunity she planned on using to live normally, but once again, she got caught in a dungeon. Caught in a dangerous situation, with the help of the number one ranker, Seo Jihan, she was saved and managed to survive, but now, she somehow can not be seperated from the number one ranker.But, doesn't his request sound suspicious?"As long as I can, I will kill all the bosses of dungeons in this world, so promise me you.'”What?