The Top Scorer's Revenge

Elena Lowe returns home, neglected; family favors adopted Serena. Serena, via Parasite System, scores higher, schemes to steal qualification. Elena scores 741. Serena announces 751, exposing system flaws. Lowe family slanders Elena/Grandma; father disowns. Elena confirmed national top scorer; Serena taken for cheating. Lowe family brings Serena to impersonate Elena for admission, but she's exposed. Serena sentenced for fraud/impersonation; Elena moves on with Grandma.