Mountain Man (Na No Wri Mo)

Kenju was always a spoiled rich girl, who always complained. A while after her seventeenth birthday, she gets on a train with her parents to go to her brother's wedding. On the way there, her train crashes, and that changes her world forever. She meets someone, who shows her what's really important in life, and changes her perspective on everything. Not many people knew his name, but those who did, respected him. His name was Buba, but to Kenju, he would always be Mountain Man.