A qualified cannon fodder attacker must meet the following conditions:
A. The protagonist's good brother and secret crush when necessary.
B. A good wingman for the protagonist and a vixen when necessary.
C. The protagonist's humanoid ATM. When necessary, he was kicked out of his home and started his own business.
Concept: The supporting role in the eyes of the protagonist is the supporting role in the eyes of the supporting role. Everyone is the protagonist of his own life drama.