Headcanon: 16 year old Tahno joins a professional waterbending school (baaaad). His mother has been teaching there since Tahno wasn't even born. So he's eternally cursed with the teacher's kid label (worseeee). And Tarrlok, who happens to be a family friend, is one of the masters who teach in Tahno's class. Doesn't seem bad, right? Well, Tarrlok's plan is to make all the students, including Tahno, think that the boy is bis "nemesis" for some reason. Until Tahno finally "attacks" back. Then Tahno's mother advices her kid to stop while insisting that Tarrlok has gold intentions. Why though? Warning: A lot of non canon things will be included! Now enjoy the story!