Jimin is in love with the wrong person. Also, she was her first love that he thinks that all the girls are playing around with him. When he met this girl that will change his mind and be in love with her.
It was First love for the two of them. It was love at first sight when he saved her...but she realizes she needs to save him.
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First story so Im sorry for typos and mistakes. Hope you enjoy also this is based on my own ideas.