Yobo-kan hall was planned as an audio-visual hall. It is located at the historic site of Onbado hall, where women, who had been banned from entering the holy mountain of Tateyama in the old times, were allowed to attend the esoteric rite of Nunobashi- Kanjo-e, hoping to obtain Peace of mind and reach the Pure Land after death.
After visiting Tenjikan hall people trace the historical pilgrims’ path crossing the Nunobashi Bridge through the cemetery on the way to Yobokan hall. And there they can virtually experience the esoteric rite using the large three screens and the latest sound systems. As the audio-visual hall was to bear 3-meter deep snow and required a huge space, soundproof RC structured rooms were built at both ends to contain machineries, etc., and a large frame combining a 36-meter long keel of gluelaminated fir was placed over these rooms to create a gigantic roof with an inverted shiphull shape. The exterior finish is same as Tenjikan hall; the roof is finished with Gensho-seki slates; the wall with thick fumigated brick tiles; and the overall exterior appears in black to harmonize with the surrounding nature yet strongly suggests its existence at the same time. At the entrance hall iron-oxide-red stucco is used to create a brilliant effect. The interior is basically made of wood, and the structures of glue-laminated wood are exposed above. At the AV hall ‚36 tatami mats are laid as seats for visitors instead of conventional seating.