So Minori essentially speaks either responsibility or do not make her fall in love with you even more
By the way, I think they just didn’t show us, but I think Isshiki could not fall asleep and touched his lips and was looking for something like hair all night haha
I think now he will try to move her away from himself thinking that he is not an equal for her, however I don't think that he has a chance against her, he can hardly resist now and is even jealous so that he has no chance to resist when she becames 16 or 18