Mahito is weird, evil, can transfigure people by touching them, uses spirit manipulation, can change his own form, cock, gross, despicable and mean, has blue hair.
Geto is, actually Kenjaku, has stitches on his forehead, deep voice, calm cool and collected, evil too, beautiful man, tall, beautiful like the moon, long black hair. 
They’re both mean rude evil murderers, killers. Cursed spirits . Cocky and confident. geto is mahitos leader. self assured and devious