Adachi and Shimamura happened to meet each other on the second floor of the gymnasium as they were skipping class. Eventually, they started seeing each other more and started playing ping-pong together.
Fifteen days... I think.
15 Tage vielleicht.
Quince días… creo.
Creo que… unos 15 días.
Une quinzaine de jours… à peu près.
Quindici giorni... credo.
Acho que por mais 15 dias.
Пятнадцать дней. Наверное.