That shouldn't be a planned tag, it does already exist in the game, no one has ever said that The Jensen girls are MC's family, it's a one-sided misunderstanding.
Before saying anything that will affect the reputation of the game, you can first use search keywords. Someone should have mentioned this issue before, and I think this can be found in the search.
Rather than scolding first and then asking the reason, I recommend asking the reason first before swearing. Shooting when you see a black shadow is not a good choice.
However, it may be possible to add in the introduction (it needs special emphasis) that MC’s parents are dead and he lives in Jensen’s house to avoid more people misunderstanding about this.