What's His Secret?

A student studying to achieve her dreams. Her life was quiet until a very handsome man named Luther Walderick Maelstrom became her Professor. Salena is the kind of woman who is not easily attracted to handsome people. But why does it seem so strange to its Professor? She is also surprised because she is his Professor's favorite. Until she became curious when Luther often became weird. She was very curious. She even planned to investigate this. But what if, she would be damned for what he would do? She just wants to know the only secret hidden in Professor Maelstrom. Because she wanted to have an answer to the only question she had in mind. What's his secret? Credits to the rightful owner of the cover photo.