Shikkaku Mon no Saikyou Kenja~ Sekai Saikyou no Kenja ga Sarani Tsuyoku Naru Tameni Tenseishimashita~ - Chapter 14 Strongest Sage, Teaches Magic

Lin Jiufeng transmigrates to become the Yuhua God Dynasty’s Crown Prince but is dethroned, banished to the Cold Palace, and imprisoned there because he had released the holy maiden of their rival country.

Lin Jiufeng isn’t dejected. He has brought a sign-in system with him when he transmigrated and he would receive rewards when he signs in at different places.

Before the Cold Palace’s gates, he signs in and receives the Ultimate Heaven Slashing Sword Skill!

In the Great Council Hall, he signs in and receives the Heaven Patching Technique!

In the Empress Dowager’s palace, he signs in and receives the God of War Totem!

…

Liu Jiufeng imagines that he can quietly sign in like this until he becomes invincible. Yet who would have imagined that the Heavenly Concubine whom he secretly released would rise in rebellion and seize power after she returns to her country?

After she succeeds, her first priority is to attack the Yuhua God Dynasty to rescue Lin Jiufeng.

When Liu Jiufeng hears of this news, he’s puzzled. «Do I need you to rescue me?»

The “Dog Emperor” gets adopted by his fake “Favored Consort.” This story follows their story as they experiences all sorts of trials in the imperial harem and find true love.

The dog king will recover his human body.

This is not a legitimate harem drama novel – there will be love, there will be pampering.

Enormous silver platters, shocking melodramas, all part of the package.

Looking at his own concubines and imperial offspring from a doggy’s perspective:

Who used to be the sweet and gentle eloquent flower turns out to be a venus fly trap behind the scenes.

Who used to be the filial and courteous, intelligent and adorable imperial princes and princesses transform into demons in a flash.

The progression (of the story) overturns understandings and unmask countless illusions.

But by the protection of the gods, the dog emperor met a healing owner. Although the path is rough, the end is pleasant.

- Description from Novelupdates

What if you spend your whole life like a vegetable in a hospital bed? Only being able to speak and listen. Just that. Would you go crazy? Unbalanced? What if it was all the fault of a degenerate madman looking for his parents' inheritance? Would you be angry? Would you be mentally broken?That was Kayden's life for 20 years and as quickly as it started, it ended, but luckily for him, reincarnation existed and by some miracle, he still had his memories of it. And....his new world had...magic.In the first moment of consciousness, Kayden made a promise to himself, in this life, he would achieve everything, he would reach the height of power, he wouldn't give a damn about women or money, futile things that would condemn him to mediocrity, his focus was to have the power to rule his destiny, this time he would not be a slave to his own life, he would be a monarch.

There was a Senior Brother and a Junior Sister. One of them was transmigrated to this world and had cheats while the other was the reincarnation of a Great Emperor.