People become afflicted by "mysterious diseases" when their hearts and minds are affected by "the mysterious."
Koto, a girl who produces mayonnaise from her eyes, visits Dr. Ramune, who specializes in these diseases that can't be explained by modern medicine.
She was brought to the clinic by Ramune's apprentice Kuro.
Koto explains that she also cries condiments other than mayonnaise, and Ramune offers her a mysterious treatment.
When your heart is weakened, something 
mysterious enters your body and causes mischief.
عندما يكون قلبك مستضعفًا، يغزو 
.شيء "غريب" جسدك ويحدث ضررًا
Wenn es schwächer wird, wird
der Körper von Geistern heimgesucht,
Si tu corazón está débil, algo extraño
posee tu cuerpo y hace travesuras.
Si tu corazón está débil, algo extraño
posee tu cuerpo y hace travesuras.
Un cœur affaibli peut être possédé
par ces choses,
Quando il tuo cuore è indebolito, qualcosa di "strano" 
entra nel tuo corpo e fa dei dispetti.
Quando seu coração está fraco, as "incógnitas"
entram no seu corpo e fazem maldades.
Когда душа ослаблена,
в тело проникает нечто «чужеродное»