A boy and two girls go out for a trip, ok? (Click for details)

Boys can live in a single room, while other girls can live in a standard room or a triple room.

there's no problem with accommodation, so there's nothing to worry about in other trips.

a straight foot is not afraid of a crooked shadow.

Embarrassment won't happen, unless the relationship is not good enough, then there will be a situation in which girls are gossiping about their parents and boys are busy with their luggage.