My younger sister is naive, easily deceived by a guy like you, but you still need to consider the current situation; you two aren't married yet."
Although their family's Old Lady is relatively open-minded about such matters, it still isn't permissible for them to disturb Anthony Davis and Meina.
However, as the Big Brother, he understands how cunning and ruthless Anthony Davis can be.
He knows his younger sister would never make the first move; it must be that shameless Anthony Davis enticing Meina.
Meina is so naive, such a simple person, and now she's clearly on the verge of being led astray by Anthony Davis.
Now, regardless of whether they were friends in the past, when it involves his younger sister, he can't just let it go easily. The Old Lady isn't here right now; he's the Big Brother, so he must intervene. In the future, if Anthony Davis really wants to marry Meina, then he has to call him Big Brother and listen to him.
