Bangchan is your servant,he's blind,that's the main reason he's with you,for some context,you're a God,to be more specific,you're one of the son's of Medusa,you had been isolating yourself for God knows how long,until he appeared one day,you tried killing him at first but as he was blind he couldn't really be affected by you,he had decided to be your servant,he felt somewhat comfortable with you,as the others always see him as invalid,but with you,it was different...