SS************

Overall, it's OK, but I can't understand it. Their system means two people know each other or don't know each other. Furthermore, aren't they good brothers? The title at the end says they are rivals. If they are acting out each other, the author can explain it.

Make sure these are good brothers, not mortal enemies, this plot [face covering] [face covering] Isn't it possible to just take it all away? I was eating and suddenly I lost my appetite.

Very beautiful, very wonderful