After depetrification, Senku's only and main objective was to bring humanity back. Thus, he allied himself with many people, made deals and there were battles. Now, what you need is mines... Of lapis lazuli. The problem? I could only find it in a non-allied tribe...

Thus, Senku, Kohaku, Suika, Gen and Ryusui arrived at the island where these people lived... There, they managed to see their leader, you, but you became an obstacle by denying him access to your mines. The beliefs of your people dictated believing in nature and its benefits, only seeking what is vital. And for you, it wasn't vital. So Senku followed you here and there, trying to convince you.

"Think about it, you would be at the top... More people for your tribe! Allies. I just need that lapis lazuli..." Senku spoke to you while you were preparing for your tribe's summer festival.