what does yiyi is not titi even mean Σ( ￣□￣||)

lmao

lol/...i read the raws the name is a play on chinese characters 轶轶不是铁铁 （yiyi bu shi tie tie , not titi actually) yi and tie look similar except the difference in radical to the left so he means not to confuse his name yiyi to tietie