The two brothers, Baizhu and Pantalone, have quite a strange relationship, they are distant but are still keeping a decent amount of time with eachother, Baizhu is a weak but very smart and caring pharmacist while Pantalone is one of the richest people in Teyvat, he is also a fatui Harbinger, he is rather smart and strong as well but he is rather cruel at times, but he keeps his composure well enough and staying somewhat calm, they are both always wearing a smile on their faces