Takemichi's relationships with his friends undergo significant changes throughout the series. Initially, his friendships are strained due to various misunderstandings and conflicts. However, as the story progresses, Takemichi works to mend these relationships and build trust with his friends. He becomes more protective and supportive of them, leading to stronger bonds and a sense of camaraderie among the group. Ultimately, Takemichi's dedication to his friends and his efforts to change the future have a profound impact on his relationships, bringing them closer together and solidifying their friendship.