It's time for Kuro's checkup. As his doctor, Ramune determines that Kuro has made a complete recovery from his mysterious illness.
Since Kuro became Ramune's assistant while receiving treatment, he asks if this means he should stop coming to the clinic.
Though Ramune wants Kuro to stay, he recalls Momiji's warning that he'll make the people around him unhappy, and tells Kuro that he doesn't have to force himself to come anymore.
afflicted by something "mysterious" 
and develop a "mysterious disease."
".ما تصاب بشيء "غامض" وتطوّر "مرضًا غامضًا
werden häufig von seltsamen
Geistern befallen und erkranken an …
se ven poseídas por algo "extraño"
y desarrollan dolencias extrañas.
se ven poseídas por algo "extraño"
y desarrollan dolencias extrañas.
peut être possédé par une « chose »
et attraper ce qu’on appelle une…
talvolta vengono colpite da qualcosa di "strano" 
e sviluppano una malattia misteriosa.
são afligidas por uma coisa "incógnita"
e desenvolvem uma "incognose".
разум проникает нечто «чужеродное»,
вызывая «мистическую болезнь».