It’s the spring of Naho’s second year in high school, and Naho receives a letter from herself, 10 years in the future. The letter accurately depicts what’s about to happen, including details on a transfer student from Tokyo, Kakeru Naruse, who ends up sitting beside her in class. On top of that, the letter also begs Naho not to invite Kakeru out with her group of friends on that day alone, but why?
Endure too much, and it'll be your loss.
.تحمّلي الكثير وستكون خسارتكِ
Wenn du alles erträgst,
Si siempre te aguantas,
 eres quien sale perdiendo.
Si siempre te aguantas,
 eres quien sale perdiendo.
Tu ne gagneras rien 
à toujours prendre sur toi.
Se continui a sopportare e basta, 
finirai per starci male tu.
Se você ficar sempre "aguentando",
 vai acabar se arrependendo.
Будешь терпеть — только хуже сделаешь.