Shintaro, Tsumugi, and their supernatural friends decide to go to the occult research club's summer camp. As it's being hosted at Hisui's family's vacation home, they're treated to lavish service while they enjoy the beach and hot spring.
building the foundation of 
the group we know today.
‫وبناء أساس المجموعة التي نعرفها اليوم.
was die Grundlage für die
heutige Firmengruppe bildete.
y fundaron el grupo
que conocemos hoy en día.
y fundaron el grupo
que conocemos hoy en día.
et les bases du groupe
ont été fondées.
ponendo le fondamenta
del Gruppo che conosciamo oggi.
construindo a base do grupo
que conhecemos hoje.
Так началась история
этой компании.