I have arrived at school yard, it's also night time. I am looking at the school architecture and I know this is Highschool DxD world. After gaining the trust of Rias Gremory and the Rook Position of her Evil Piece, I meet the protagonist of this world Hyoudou Issei. I am helping him to save Aisha, Rias is reincarnating her, killing stray devils then training both Issei and Aisha. Rias Gremory wins against Raizer Phoenix because there's me that helping to prevent the defeat of each of Rias's peers.
The commotion of Excalibur Sword shocks Yuuto Kiba, the confused Yuuto Kiba makes the job of killing the stray devils become little dangerous because he doesn't see his comrades in danger, the past of Yuuto Kiba, the help of Rias gremory and Issei is helping him. We meet Xenovia and Irina. I, Issei, Aisha, Koneko are helping them to collect or destroy the Excalibur Sword.
The Fallen Angel Kokabel wants to open the world war again after he is dissatisfied with Azazel's decision, but Rias and us come to prevent it. New power of Yuuto Kiba, Balance Breaker Light Darkness Sword. Issei's full hidden talent helps him to shock Kokabel. Xenovia also comes to help us for preventing the world war. The death news of God and White Dragon Vali defeats Kokabel.
The apology of Yuuto Kiba, the appearance of Rias's brother or The Demon King and the training match with Rias's brother. Meeting the half-vampire Gasper, I am helping him to control his time power with Issei, Aisha and Koneko. Issei's Dragon Slayer Sword Ascalon from The Arch Angel Michael and the meeting of 3 factions. The berserk of Gasper ability and the betrayal of White Dragon Vali. The fight of Red Dragon Issei and White Dragon Vali. I am also casting the formations to collect their powers secretly.
I have finally undergone 128 Heavenly Thunder Tribulation for Beginning Middle Tribulation Stage. After my cultivation has been upgraded, I apology Rias about my departure and reveal my true identity as the person from another world then return her Rook of Evil Piece. My purpose come to this world is to improve the strength and go back home. After that I begin to pass through the other world again.
I have come to Rail-Gun World then meet the female protagonist of this world Rail-Gun Misaka Mikoto, Uiharu, Saten and Kuroko. Their friendship is very unique and fresh. The bank robber case and void bomb case. I have met the male protagonist of this world Kamijou Touma. The love fight of 2 protagonists and Kuroko's suspicious action. Levelup case and I have helped to cure Saten's unconscious condition.
I help Misaka Mikoto at the fight with Kiyama Harumi and the fight with AIM monster. I instruct and give an idea to Misaka Mikoto about rescuing her clone sisters by invited kamijou Touma to fight the accelerator. Helping to absorb and store the electric energy from the body of Misaka Mikoto that has been manipulated. Calling Kamijou Touma and Shokuhou Misaki to assist her from the other aspects. We have prevented the action of Kihara Gensei successfully.
Once again I have undergone 256 Heavenly Thunder Tribulation for Beginning Late Tribulation Stage. I have many energies in the storage ring and begin to upgrade again then finally breakthrough to Early Beginning Lord Stage. I am also transferred by the world law to the Immortal-based world.