This phrase is rather unclear. Maybe it suggests that in some context, a hentai manga has taken the place of a sister, but it's hard to say exactly what the implications could be without more context.
I'm not quite sure what you mean by that. It sounds quite odd and confusing.
I have no idea what 'hentai manga replaced sister' is supposed to convey. It's a very strange combination of words and without further details, it's impossible to understand its significance or impact.
Chapter 548, "A Guy Named Gu Yu", is the clearest early answer because it turns Chengcheng's situation into a concrete plot event. A useful checkpoint is the way the scene starts with No, we can't," Su Yinwan blurted out subconsciously.
Chapter 475, "Doting on the Man You Love to the Fullest", is the clearest early answer because it turns Hua University's situation into a concrete plot event. The chapter turns that into something concrete by moving from On the other side, Jiang Yan and Shang Shuyue also set off.
Chapter 643, "Jiang Li Dominates the Trending Searches!", is the clearest early answer because it turns All's situation into a concrete plot event. It opens with Qi Tianyu joyously carried his construction to the side to wait for...
Chapter 434, "The Identity of the Feng Shui Master Can't Be Hidden Anymore", is the clearest early answer because the hidden truth stops feeling like mere subtext. Early on, He thought Jiang Li was just talking, but to his surprise, there....
Chapter 659, "Bodyguard Agreement", is the clearest early answer because a shaky connection becomes usable in the plot. A useful checkpoint is the way the scene starts with Besides, how easy is it to get into the Gu Family? and follows through with He only hated himself, his own incapacity..
Chapter 704, "Even if I were a slave, I would be willing!", is the clearest early answer because it turns Lili's situation into a concrete plot event. The chapter turns that into something concrete by moving from Wu Daoshan looked at Zhao Lang in shock.
Chapter 647, "Let's Have a Sword Dance!", is the clearest early answer because it turns Gu's situation into a concrete plot event. The chapter gives readers a real answer by opening on Before long, the aroma of meat began to waft through the air, and...
Chapter 575, "The First Time Threatening Someone Feels Quite Marvelous", is the clearest early answer because it turns Quite Marvelous Is's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Is there really no way to get any money out?" After some...
Chapter 698, "Brother Yan Was Just Forced!", is the clearest early answer because it turns Shao Changqing's situation into a concrete plot event.
Chapter 642, "Congratulations to Qi Tianyu, Points Increased by 10!", is the clearest early answer because it turns Shu Yan's situation into a concrete plot event. The chapter gives readers a real answer by opening on We'll be the first to catch the plane, then we head straight to party!