Answer:
Jun's pressure and influence has invalidated Mika's consent.
Step-by-step explanation:
By threatening Mika with prosecution if she doesn't set a discount for the sale of her house on the grounds of her debt to her, she has influenced Jun's consent or rather coerced it and therefore Mika's consent is invalidated in the agreement. Consent is free under law if contract and should be given under undue influence, duress or any other vitiating factor that will render the contract null and void such as the example above