Database using MariaDB, Mysql on Xampp

Database using MariaDB, Xampp mysql.
Constraint foreign key.

Background songs:
BTS (Jungkook) – Euphoria
https://www.youtube.com/watch?v=kX0vO4vlJuU&list=PL_Cqw69_m_yzbMVGvQA8QWrL_HdVXJQX7&index=24&t=0s

BTS ft Lauv – Make It Right
https://www.youtube.com/watch?v=eXBu09fwe3I

BTS – Mikrokosmos