The protagonist was born sick and weak, and was accidentally bound to the strategy system after his death.
After binding, the journey of strategy begins
In these guide worlds, the protagonists are still weak or seriously ill.
But fortunately, the appearance of the protagonist has not changed, and even compared to it, every task can be completed easily.
Of course, the plot is mainly sweet, and there should be no abuse (∩'-'?)
Purpose: out of love for oneself