Everything was in Takashi toda's calculation. Originally, he wanted to kill Aoki Yui quickly, but who would have thought that the cat's strength was stronger than expected, allowing it to successfully save Aoki Yui.
Later, Takashi toda changed his strategy. He bit cui Hua tightly and did not give her time to inject blood to recover. It was no secret that li Xianyu's blood could heal injuries. He could not have not thought of this.
At this time, it only had two paths to take. The first was to fight and wait for him to be consumed by the potion's backlash and obtain victory without any effort.
The second was to escape the passenger ship and inject the blood medicine for Aoki Yui in a safe place.
In Takashi toda's view, Takashi should have chosen the first option, which was the most favorable one. Although he only buried Aoki Yui with him, he had completed the task.