Decryption strange language

I decrypt 65 67 69 6E 0A 00 00 00 00 00 90 40 00 using xor key 250
the result is ÌÏÚÌÍÚÌÃÚÌ¿ÚÊ»ÚÊÊÚÊÊÚÊÊÚÊÊÚÊÊÚÃÊÚÎÊÚÊÊ

anyone have any idea why the result is strange language?

Maybe these are cyricllic letters? Like in russian and your text programm cant display that font.

Wrong xor key