All around Mana, humans are being stricken with a strange illness that turns them all wrinkly and causes them to fall unconscious. She notices that her classmate Tsutomu is acting oddly, but he keeps telling her to leave him alone. Worried, Mana goes to his apartment building. But, faced with his mother's piercing gaze, Mana runs away. That night, Mana tells Kitaro about Tsutomu and his mother's odd behavior. Wondering if it's somehow connected to the strange illness, Kitaro and Cat-girl go to Tsutomu's apartment. What they see there, the truth behind the illness is...?!
The door to the unseen world opens...
...يفتح الباب إلى العالم غير المرئي
Das Tor zur verborgenen Welt öffnet sich.
Se abre la puerta
hacia el mundo invisible.
Se abre la puerta
hacia el mundo invisible.
Une porte s’ouvre
sur un monde invisible…
Si apre la porta del mondo invisibile.
A porta para um mundo
invisível se abre.
Дверь в невидимый мир открылась...