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. 
Meaning, you're just like a normal human 
and have a heart that can be hurt.
ما يعني بأنّكِ مجرّد بشريّة عاديّة
ولديكِ قلب قد يتعرّض لأذى
Und der genau wie Menschen
verletzt werden kann.
Un ser a quien puedo herir,
como a cualquier humano.
Un ser a quien puedo herir,
como a cualquier humano.
un cœur qui peut s’éprendre et se briser
comme celui des êtres humains.
Una creatura con sentimenti
Alguém cujo coração pode se machucar,
igual a um ser humano normal.
чувства которого тоже можно ранить,
подобно человеческим.