A Demon King Through The Worlds

After all, the Kamado family lineage is already different thanks to the long practice of sun breathing.

This is demonstrated considering that all the demons who have overcome the sun alone have been from the Kamado family.

This is the greatest proof of how special solar breathing is.

And it is known that Tanjiro has a lot of talent, so why doesn't he turn them into allies?

As long as you don't make them attack each other, they are unlikely to rebel.

'But first of all, I must obtain the blue spider lily. I miss what I used to eat...' Lucian thought as he wiped away non-existent tears.

Even if he had no problem eating humans, eating just that is really bad.

How much better would it be to be able to eat a sandwich with fries and drink a coke?

Even if eating humans increases strength, it is still a huge gastronomic loss.

"So laying out the plan... I wait for them to find the blue spider lily... Then I turn them into demons... Then I wait for Daki to attract some hashira... I locate the base of the Demon Slayer Corps, and finish with an attack on large scale." Lucian made a general outline of the plan before continuing to add details.

The initial phases basically do not need careful planning.

Only the final phase needs planning to keep casualties under control.

'Gyutaro and Daki have useful kekkijutus with great potential, so I intend to keep them. I believe it would be best to have Gyutaro on the front lines, while Daki stays hidden, keeping it impossible for Gyutaro to die from decapitation.'

'Hantengu will be sent to deal with the low-level slayers. It doesn't matter much, even if I create a refined plan it won't change the ending, and he is basically incapable of following orders so I don't intend to keep him.'

'Nakime will divide the hashiras as much as possible, and Kokkushibo, Douma and Akaza will attack and kill the enemies in the shortest possible time. There shouldn't be any problems as long as they aren't besieged by 3 or 4 hashiras at once.'

'I must pair those with more or less equivalent strength so that the kizuki can gain an advantage. Kukoshibo against Gyomei, Douma against Rengoku, Akaza against Shinazugawa. At least that would be the preliminary combination.'

'Actually, Douma has an advantage against anyone other than Shinobu. For slayers, the most important thing is to breathe, Douma prevents them from doing that. However, if he killed Shinobu he would devour her without a doubt, and her body is highly poisonous.'

'And I intend to win over both Shinobu and Mitsuri.'

'Just because they are the most possible to be conquered. One lives for revenge, and the other just seeks a husband. I certainly have no impure reasons for having such an idea.'

'Although I would be a good husband...'

'The rest of the hashiras won't present much difficulty.'

'...Maybe I'll solve Gyuu Tomioka myself, his ability to avoid attacks is quite high.'

Of course this is all just a basic layout, Kokushibo and the others can handle more than one hashira without losing.

Especially now that none of them have a slayer's mark.

'The best thing would be to get involved in a war of exhaustion...'

Prolonged battles first disadvantage the slayers and then the demons.

slayers tend to prefer quick battles, considering that their resistance is not infinite like demons.

However, if the battle goes on too long and the sun rises, the demon automatically loses.

Not that this will be a problem while there is Nakime.

'As long as I can take advantage of all the advantages I have at the moment, it will be easy. The problem is that I must wait to obtain the blue spider lily, however the more time passes, the better it will be for the slayers.' Lucian finally concluded.

Stopping his ramblings, Lucian used teleportation again.

Being enveloped by the crimson substance, Lucian felt the unfamiliar sensation of teleportation.

The slight lapse of consciousness, along with the sensation of moving through a dense liquid.

Like being submerged in a pool of mercury.

And then slowly detach yourself from this pool and glimpse a scenario totally different from the previous one.

"I will call this liquid [Dimensional Blood]." Lucian said right after planting his feet on the ground.

'Maybe it's my chuunibyou side speaking... Wait, if the power is real then it's not chuunibyou. I'm really good at naming.'

Lucian thought, as he praised himself for his rich imagination and broad naming ability.

However, he had a feeling that this and the accumulation of other dimensional abilities would bring about a qualitative change, opening up a wide range of possibilities.

Quickly putting these thoughts aside, Lucian returned to his flight training.

With his pair of wings flapping powerfully, Lucian's body rose into the air, soon reaching high altitudes.

Despite having stopped at a height of 400 meters, Lucian felt that this was not his limit.

The air flows would only become more agitated at a higher altitude, and the temperature reaches temperatures close to 0 only at 6,000 meters of altitude.

However, it was unnecessary to continue climbing, the place where he was was more than enough for what he intended to do.

Lucian took a deep breath, enjoying the feeling of air flowing through his lungs.

'Even if you don't need to do it, it's still invigorating.'

Then he began to dive, spin, go up and down, go right and left, somersault back and forth.

Constantly trying to improve your aerial maneuverability.

And his way of doing this was precisely by trying to move in the air as he would on earth.

And of course, to speed up the process and make the adaptation more complete, he also tried several slightly different movements.

The most important thing of all is to stay in the air, after all, at a time when flying is necessary, falling can mean death.

"Later I should try to develop some method of propulsion." Lucian commented lightly as he performed a headfirst dive.

Diving is the fastest way to descend, so it is a method that must be mastered.

The opposite, the ability to exit the dive and ascend quickly, is just as important.

'Only by mastering flight and its nuances will these wings truly be worth it.'