Douluo Dalu: The Legend of the Dragon King: Scathach Is by My Side from the Start

[Pure wish fulfillment] [Against Tang San] Kai arrives in Douluo Dalu and gets help from the System, which gifts him an island nation where everyone has the power of a Titled Douluo. The System also gives him a beginner's gift pack: the Douluo version of the Herrscher of Corruption form, known as the World-Eater; a Seven Ultra Head Dart; two awakened Martial Souls, the Heart of Time and Space and the Void Archives; and a head full of knowledge about Soul Guidance Technology. He also receives the skill Sword of Promised Victory (Excalibur), as well as the helper Scathach. On top of that, he receives Grandmaster-level cultivation, enough to fight the God Kings of the Great God Realm! He also gets secret cultivation manuals: Flowing Cloud Loose Hands, the Way of Heaven's One, Four Look Swordplay, and Overbearing True Qi. With all this help, Kai is full of confidence. He is sure he can foil Tang San's evil plans and stop Douluo Dalu from becoming the Tang family's private garden. Meanwhile, Gu Yuena is reborn from the previous timeline and returns to a new one. She had expected it to be just like the world before, but soon discovers that this timeline is different. P.S. The protagonist transmigrated long ago, but this world is a new timeline, and he has forgotten his memories of the previous one. The protagonist in the previous timeline didn't have a System. Besides Gu Yuena, some other characters remember the previous timeline too, including Tang Wulin and Wu Changkong. Tang Wulin, however, is going to make a fool of himself. By the way, I feel like the Grandmasters in Joy of Life are even stronger than the gods of the Divine Realm!