Takahashi Tetsuo, a biology teacher at Shizaki High School, has been fascinated with "demi-humans," beings with characteristics that differ just slightly from humans, since he was in college. He wishes he could have a chance to talk with one, but since the demi-human population is fairly low, he's never even met one. But then the school gains a new math teacher, Satou Sakie... who happens to be a succubus.
The bus is crowded during school 
commuter hours, so it's dangerous.
تكون الحافلة مزدحمة خلال أوقات الخروج
.من المدارس، لذلك يكون الأمر خطيرًا
Während der Pendelzeiten ist
es im Bus viel zu voll und gefährlich.
El autobús está muy lleno
a esa hora, y es peligroso.
El autobús está muy lleno
a esa hora, y es peligroso.
Le bus, ça peut être dangereux
à l’heure de pointe.
L'autobus è affollato in orario di punta,
quindi è pericoloso.
O ônibus vive cheio nessas
 horas, aí é perigoso.
Утром автобус битком набит,
для меня это слишком опасно.