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.

Nthawi zina mumafunikira gulu lalikulu kwambiri laopanga aluso kuti mupange mapulani abwino kwambiri. Tsiku ndi tsiku, timakhala ndi gulu lopambana lopeza mphoto. Pezani ndikuwona zomangamanga zoyambirira ndi zomanga, mamangidwe abwino, mafashoni, kapangidwe kazithunzi ndi kapangidwe ka malingaliro kuchokera ku magulu opanga padziko lonse lapansi. Idzozedwe ndi ntchito zoyambirira za akatswiri apamwamba.