Saitama Super Arena solo performance "ZUTOMAYO FACTORY 'Even if the falcon is hungry, don't forget to dance'". Held for 2 days in a row, not only is it the largest live performance held on two consecutive days, but it is also a solid band with a total of 18 people, such as familiar special instruments such as reel-to-reel, CRT TV, and fan, and pianist "Kei-chan" making a special appearance only on day 2. It was a conceptual performance like no other, with an analog stage set that made it clear that the two days had passed 100 years, and some changes to the music.

The final performance (approx. 110 minutes) of the one-man live titled CLEANING LABO "Nukureochido (Nucleotide)" , held across four shows on May 15th and 16th, 2021, at Makuhari Messe Event Hall, will be fully recorded and released as Zutto Mayonaka de Ii no. 's first-ever live video work . First Press Limited Edition Bonuses · Features a "grimoire package design" (color: "clean white") · Includes a complete recording of the "Yakiyaki Yankee Tour @ Tokyo Garden Theater 2020.11.29" (approx. 100 minutes) · Special audio commentary: "ACAね's Solo Live Reflection Session" , offering a relaxed behind-the-scenes perspective on the unspoken details of the performance Standard Edition · Contains the full live footage and the "ACAね's Solo Live Reflection Session" audio commentary