Natsuki has been acting strange and seems to have his head in the clouds through everything he does. After being interrogated by Minamo and the others, he reluctantly confesses to them that he kissed Atri in the ocean. 
That's why I want you to experience 
happiness and sadness a little at a time
لهذا أريدكِ أن تعيشي السّعادة
والحزن قليلاً بين الحين والآخر
Darum nutz jetzt die Zeit,
erlebe, was Freude und Trauer ist
Por eso quiero que experimentes
alegría y tristeza
Por eso quiero que experimentes
alegría y tristeza
Pour l’instant, découvre peu à peu
ce qui te procure de la joie ou non
Perciò per ora,
Por isso, por enquanto...
Пока что понемногу привыкай
к радости и печали,