The ultimate sister control Qin Huan's life principles:
Listen to your sister; follow your sister;
Protect your sister; conquer your sister;
Bai Tu struggled internally:
No,
Although he is not related by blood, he is also your brother.
He is just young and ignorant, so he takes his attachment to you as love.
It is simply an animal behavior to not let his brother go.
It wasn't until they lost their memory once that the two of them decided on their feelings.
Qin Huan: Get married where you are, don't let bad things take advantage of you!
Bai Tu: So what if it's a beast, just treat it as such!
Purpose: Campus love