Caravans (修学旅行(キャラバン) Kyaraban?) are codenames the Butei High Schools use for field school-trips.

Caravan 1 修学旅行I(キャラバン・ワン)Edit

The first Caravan for sophomores only. While circumstances look like an ordinary school trip, it was to test the students for the best team formations.

Caravan 2 修学旅行II(キャラバン・ツー)Edit

The second Caravan where the assembled teams from the first Caravan to their own abroad destinations and structure their own training.

Hidan no Aria World