It seems KT is not allowed users to sharing the Character and Extra Episodes on Youtube. All my videos before 2022-08-25 except the Gravure Videos are all received the copyright strikes from KT (Yes, even the Free character Koharu's 1st Episode, that most of the DMM gamers should already owned it). It caused my Youtube account gets suspended immediately. Therefore, I will only share the Gacha and Gravure Videos on Youtube in the furture.