Teacher Ximena Fernández is something like the embodiment of all that is good. She is a teacher, friend and mother to her students. She shows friendliness and enormous patience, she is loved by all.
There are roughly one-sh*t billion tropes so PLEASE look through them before adding one. Otherwise add what you like. ADDITION: PLEASE read through the trope description provided before submitting something. It's not a huge deal but too often people submit characters that don't fit just because they misinterpreted the title...