group_hairstyle_switch
Three or above characters interchanging_their_hairstyles. This requires all characters to involve in the same switch, hence multiple pairs of 1v1 switches don't count as a "group switch".
See also
* group costume switch
Three or above characters interchanging_their_hairstyles. This requires all characters to involve in the same switch, hence multiple pairs of 1v1 switches don't count as a "group switch".