At many of soba restaurants, the main floor is usually an open eating area with tables, whereas the upstairs is partitioned off into small private rooms used for such purposes as sensitive conferences, lovers' meetings and large gatherings.
たいてい一階が入れこみ、二階が小座敷になっていることが多く、二階は込み入った相談、男女の逢引、大勢での集まりなどにも用いられたという。