Matenrou Opera (摩天楼オペラ) was formed in October 2006 by Sono, the talented vocalist of Jeniva. After Jeniva disbanded on October 14th, Sono and Jeniva's drummer Yuu started working on the new band. All the members were chosen already in October, before Jeniva even disbanded. The following two months Matenrou Opera spent by rehearsing, designing costumes and preparing for their first lives in the spring otherwise as well.

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