Following Syndra's plan, she approached LeBlanc a few days later and offered her a willingness to join forces with her against the Ionian army. It was also agreed that if the war was won, Noxus would occupy the three provinces of Ionia as a reward, and that the rule of Ionia would be given to the robbed army. Once a consensus was reached, LeBlanc evacuated the eastern ports and returned to his base. But before leaving, LeBlanc called Tyrone over and secretly instructed him: "When I go back, you will spy on the eastern port, and if there is any news, you must inform me immediately." They must have some plan. Tyrone nodded, and led his men out of the eastern port.

After this was achieved, the raiders stationed their troops in the eastern port, where the Ionian defenders still believed to be their own. At the same time, Tyrone has set up a small camp not far away to monitor the eastern port. A few days later, as LeBlanc expected, the ship in the eastern port seemed to be ready to leave, and Tyrone immediately sent his men to inform LeBlanc when he learned about it. And he also disguised himself and sneaked into it to find out.

The day after he occupied the port, he began to plan to send Yasuo to Shurima, and Sindra advised him not to rush first, but he was worried about the long nights and dreams, so he carried out this plan in advance. Soon the ships for Yasuo were ready, but they didn't know that all of this had been discovered by Tyrone. A few days later, Tyrone's messenger returned, and he gave Tyrone a letter to LeBlan, which explained what Tyrone was to do.

"The purpose of the Shadow Stream Army's trip out of the ship is definitely not simple, Tyrone has to follow this ship, as long as you are alone. The destination of the ships in the eastern ports is only the Valoran continent, so when the ship comes ashore I need you to keep track of their team and inform me immediately through Hearthstone if there is any situation. Tyrone received LeBlan's order and immediately began to prepare, and the night before the ship departed, Tyrone managed to sneak into the harbor and kill and replace one of the sailors on board.

The next day, Yasuo said goodbye to the Shadow Stream and boarded the ship. When Tyrone saw Yasuo on the boat, he felt that this matter was strange, and Yasuo was only alone without an entourage. Tyrone was sure that the Shadowstream had a very secret plan, and because of Tyrone's successful outfit, no one noticed anything unusual. Before leaving, Sindra instructed Yasuo: "Your trip is crucial, make sure you succeed in retrieving the power of Ascension, and I will use Hearthstone to keep in touch with you." Yasuo nodded and said, "Don't worry, death is like the wind, always with me, I'm used to it." “

After Yasuo left, he began to prepare for war against the Ionian army again, but this time LeBlanc will also secretly help the Shadowstream Legion. In the ensuing battle, Noxus nominally came to the aid of the war, but with little success, and secretly revealed various information to the Shadowstream Legion, causing the Ionian army to retreat. Kalmar saw the clue and thought that Noxus was here to stir things up, and they shouldn't be allowed to help. Karma asks the Council of Elders to withdraw Noxus from the war, in case they have any restless plans. However, Elder Ukan was afraid that Noxus would take advantage of the fire and provoke them, so he shelved Karma's proposal. Karma was angry, thinking that the rotten Council of Elders would ruin Ionia's future, but for now it was time to fight the enemy together, and Karma was dissatisfied but endured.

Noxus' real goal was to temporarily control the three coastal provinces of Ionia, and after the formation of the Alliance, Noxus had abandoned Ionia as its object of aggression, and Svein set his sights on Bilgewater, which was located south of Ionia. Bilgewater has long been a pirate's paradise and is not subject to the law. Planck, the most powerful pirate leader in the area, took over Bilgewater, but despite this, Bilgewater was still a chaotic city-state in the eyes of outsiders. Noxus took a fancy to the superiority of the sea conditions here, and wanted to include Bilgewater in its territory, so in order to occupy a favorable geographical position to attack Bilgewater, Noxus needed to occupy the three coastal provinces of Ionia as its naval transit station. Svein's plan could have been seamless, but his only mistake and fatal mistake was to appoint LeBlanc as the top executive of the expeditionary force.

What is unknown is that LeBlanc is also a member of the Dark Heroes, but she has not done anything out of the ordinary since she was imprisoned, and her ambitions have gradually been ignored within the Alliance. LeBlanc later secretly found a list of dark heroes and crossed his name on it. As a result, although LeBlanc was imprisoned in his mind, everyone, including Syndra, who secretly found the list later, did not know that LeBlanc was also a dark hero. LeBlanc felt that she was hiding seamlessly, but at a banquet at the War College, a noble woman in Demacia met LeBlanc and praised her: "Miss LeBlanc, I have always thought that you are such a kind and loyal defender hero, how can you be imprisoned in your mind?" This was meant by Qualeblan, and expressed regret for what happened to her, but LeBlanc feared that the woman would remind others of the fact that she was a dark hero, so two months later, LeBlanc turned into a witch and killed the nobleman of Demacia, killing her husband, servants, and all the retinue in the house. In order to hide her identity, she doesn't want others to remember that she is a dark hero. But when she slaughtered, she accidentally missed the woman's child, who witnessed the massacre of LeBlanc, and when she grew up, she joined the League of Legends to investigate the murderers of her parents as a "night hunter, and hunt down all wizards who used dark magic." And LeBlanc plans to rely on the name of the supreme commander of her expeditionary force at this moment to break away from Noxus's control over her, and LeBlanc even planned to use the power of the expeditionary force to establish a sphere of influence for herself, so she deliberately installed many members of the Dark Rose Organization in the Noxus command as eyes. Now that events are getting closer and closer to the implementation of her plan, it is no exaggeration to say that LeBlanc is cunning enough to make everyone think that she is not one of the dark heroes. Now LeBlanc had returned to camp, and Tyrone had followed Yasuo out to sea. "The show is just beginning". LeBlanc smiled charmingly and closed Bilgewater's map.