Bala, Kalabu ya Usiku Plus 81 ndi malo amkati a bala ndi kalabu ya usiku okhazikika mkati mwa malo ogulitsira akale. Chinyumba chakunja chimafanana ndi malo omanga kwakanthawi okutidwa ndi manyuzipepala a ku Japan, ndipo khomo lolowera labisika kuseri kwa sitolo yogulitsa zidole, zomwe zimapanga kusintha pang'onopang'ono polowa mkati. Bala yapakati imakhala maziko a kapangidwe kake, pomwe madera ozungulira amathandizira kudya, mipando yopumira, karaoke ndi misonkhano yachinsinsi. Denga la magiridi lokhala ndi magetsi a RGB limayankha kutalika kochepa kwa denga ndikuwonjezera kayimbidwe kowoneka. Zipangizo zake zikuphatikizapo zitsulo zokutidwa ndi zinki, magalasi ojambulidwa ndi pansi pa resin okhala ndi zilembo zojambula.

Dzina la polojekiti : Plus 81, Dzina laopanga : Takahiro Todoroki, Dzina la kasitomala : engine,inc.

Werengani mafunso aposachedwa komanso zokambirana pamapangidwe, zaluso ndi luso pakati pa mtolankhani wa mapangidwe ndi akatswiri otchuka padziko lonse lapansi, akatswiri ojambula ndi olemba mapulani. Onani mapulojekiti aposachedwa komanso mapikidwe omwe adapambana Dziwani zatsopano pazapangidwe, nzeru, zaluso, kapangidwe ndi kapangidwe kake. Phunzirani zamapangidwe opanga opanga zazikulu.