Throughout the series, Takemichi's relationship with his younger self evolves from initial disbelief and confusion to a deep sense of responsibility and determination. As he interacts more with his younger self and the people from his past, Takemichi starts to understand the significance of his role in shaping his own future and the futures of those around him. This realization leads to him becoming more proactive in trying to change the course of events and protect his younger self from harm. Ultimately, their relationship transforms into one of self-reflection, growth, and a strong desire to create a better future together.