Although Klaus was the sole inheritor of his parents’ estate and fortune, he never really had the need to work, and after his time away from Earth he found himself out of touch with Earthly things like jobs and taxes. But his time away from Earth had taught him one thing: to work hard and so despite everything Klaus has a part time job. Attempting to live of the money he earns rather the money that was left to him. Maybe one day he’d donate it to charity or something but for now it stays where it is. 

Anyway when he is not studying or researching, his part time job is SINGING. He sings in small concerts in Gwangju or the clubs of Hongdae and Itaewon but never seems to land anything big. Not that it matters. He enjoys to sing and it’s what he does well. It pays well enough to maintain an apartment in Bucheon but when all else fails he has his family estate or a family home in Australia.