Aside from the idea that the mc can switch at will (kinda), the background characters also give me the same feeling as Ranma 1/2.
Wonder where this will go, things seems pretty unusual (in a good way) so far (2 chapters).
Có thể bạn chưa biết, vụ vợ chồng gọi nhau bằng "em"-"anh" mới được phổ biến rộng rãi trong khoảng 100 năm trở lại đây, trước đó tùy vùng tùy nhà mà người ta gọi nhau bằng "vợ"-"chồng", "chị"-"anh", "gái"-"trai", "mình",...
I really like the concept of having someone as a friend that you meet occasionally but still very close and always be there when you need.
Also the platonic friendship.
Bro just saw someone lying down on the closest seat to the door and asked if he was gay with an absolutely serious face.
I'm pretty sure sitting on a random chair or even desk when it's convenient is very common.