"A long time ago, my teacher once told me that the initial reason for our entanglement came from my gaze, or to be more specific - my choice. Once I took an interest in him, he turned into the Joker, and the Joker was destined to have an unceasing connection with Batman."
"As the teaching continued to deepen, his words revealed more information. The entanglement of Batman and the Joker seems to be a fate that this world has woven for these two, which no one can break. Its priority is almost higher than anything that happens in this world."
"Later, I learned that the conditions of the Joker and Batman are complementing each other. Their madness is like plants that were entangled from the seedling stage, they are already connected by blood and cannot be separated."
"From this, it can be inferred that the stronger Batman becomes, the stronger the Joker becomes, and I indeed have personally experienced this."
"When I was desperately seeking power, wanting to save Gotham, both my teacher within and the other Joker in Gotham were extremely crazy and reckless."
"But when I gradually let go of all this and pursued my own life, I found that their madness that used to drive me to despair seemed to have healed itself. Even though there are still some morbid thoughts lingering, they are more like philosophers and artists."
"Thus, I started to conceive some other ideas."
Bruce, standing on the highest pinnacle of the Westminster Abbey, overlooking the whole of London, heard the sounds of crazy laughter and vampires' screams from below. He spoke to Beelzebub in his mind.
"Known facts: First, I can transform others into the Joker by some means; second, the stronger the Joker, the stronger Batman becomes."
"So, is there a possibility - I find a person who is strong enough, turn him into the Joker, the Joker becomes stronger, and I become stronger as a result. Then I can find someone even stronger, turn him into the Joker, the Joker becomes stronger, and I become stronger, and then I continue..."
"Huh?"
"When this idea appeared in my mind, it was still just an initial plan. Many practical issues persist, but I still managed to summarize many patterns that should work through my previous experiences."
"First, I have to find a target and have some entanglement with them. I look at them, they look at me, I draw their attention, they draw my attention."
"But I don't have complete faith in this concept of fate encased in philosophy and metaphysics, I believe there may be more direct methods to achieve this transformation."
"And, in a previous encounter, someone drew my blood. But the powerful creature he entertained did not dare to drink it. It wasn't' disgust, but simply fear. He stressed that I am special and anyone who drinks my blood will have unexplored ties with me. I think this will be my means to execute the plan."
"The methods of implementation are set, the next step is to select the target. But for a long time, I haven't found a suitable target because I don't think anyone in the normal society is stronger than me. Even if they surpass me in some aspects, the improvement that can be brought is not worth such an effort."
"Until my teacher introduced me to the magic realm, I had some understanding of it, but I was mostly focused on magicians like Constantine. I have no interest in borrowing from the Demon God, so I never delved into the existence of the magic realm."
"Later, at the Forgotten Bookstore, I read many books introducing magical creatures, historical records of the magical world, and theological books. Then I discovered that the powerful demons and angels recorded in the Bible really exist."
"But demons and angels are not good targets. Demons prefer to toy with human souls and angels are highly unlikely to drink human blood. But while selectively scrutinizing targets through these records, I noticed a kind of creature that is a perfect target - vampires."
"They are naturally carnivorous with human blood, they don't require any deception to taste my blood. So, at the Forgotten Bookstore, I asked Constantine to find me a vampire to see whether he would be transformed by me."
"But just then, the magic realm fell into turmoil, and coincidentally, vampires return in force. I heard the news of Cain, the ancestor of the Blood Clan, and roughly understood his identity, personality, and behavioral patterns from the Bible and many other records about Eden."
Bruce sighed softly and said, "No one has ever firmly chosen Cain, and this is his biggest weakness."
"In Eden, whether it was God or Adam and Eve, they all preferred Abel. When he was ousted from Eden and came to the Red Sea, even Lilith, who had a grudge against Adam, did not choose him. He could only leave."
"People who lack affirmation and admiration in their growth process will develop a fear of people's praises. When they encounter someone's affirmation and choice, they will doubt it due to fear which ultimately makes them irrational."
"The plan is going very smoothly." Bruce stared at the glimmer of dawn on the horizon, and said, "Now half of the plan has been successful. Cain has been transformed by me into the Joker. The next steps are observation. I need to understand how the dynamic intensity between me and the Joker is realized."