Lost in the darkness

Kim Namjoon, just an innocent 7 year old kid who naturally born with purple hair. He live happily with his family. Until, an expected accident occurred, and he found out something about him that he have to keep it secret forever. Then, his life turn upsidedown.

10 years have passed, he became the worst bad boy in his school. He had 6 friends and they...... didn't know what the cause he became like this. He's lost in the darkness. No one can guide him to the light.

Until one day, a girl came and guide him to the light that he need for a very long time.