It is entrance exams season. Kotoko passes the entrance exams to Tonan University. On the other hand Naoki reluctantly goes to take the National Center Exams as an obligation to his father. Because of Kotoko's hand-made good-luck charm, Naoki's day of exams is riddled with troubles. Then on the day of entrance exams to Tokyo University, Kotoko tags along with Naoki, but collapses at the gate from a severe stomach pain.
is too much pressure on Onii-chan.
que es demasiada presión para él.
sea demasiada presión 
para el hermano mayor.
trop de pression sur les épaules.
que é muito peso em suas costas.