After hearing the old man's statement, Sei didn't give him an answer. He still felt so much hatred towards his father and it was difficult not see the Zhao family under the same light. However, knowing that his grandfather was the one who helped them at that time was enough for him to rethink his decision. After all, the Zhao clan was innocent and his father was the only one who was guilty. He understood that it would be unfair if the rest of the clan suffered because of the sins of a single member.
Of course, Sei was still angry about this old man kidnapping Davi but in the end, he realized this was also partly his fault. He should've given his grandfather a chance in the first place. His grandfather was desperately trying to reach out to him and had used more appropriate methods before having to resort to this.