If 'Kimi based on a true story', perhaps the setting of the story is a real place. So Kimi could live in a city that actually exists, and the events that happen around Kimi could be based on real events that took place in that city. Also, Kimi's relationships with other characters might be modeled after real - life relationships, like a family dynamic or a friendship that was in the true story.
One way it could be presented is through the challenges that Kimi faces. If the true story involved someone overcoming an illness, then Kimi in the story might face a similar health - related struggle. Another aspect could be in the cultural references. If the true story was set in a particular cultural context, then the story of Kimi would also incorporate those cultural elements. For instance, if the real - life basis was in a small fishing village with unique traditions, Kimi's story could show those traditions and how they impact Kimi's life. Also, Kimi's personality traits could be borrowed from the real - life person, such as being tenacious or kind - hearted because the real person had those qualities.
Maybe the character of Kimi has a real - life counterpart's job. For example, if the real - life person was a journalist, Kimi in the story could be a journalist too.