Ryota's older sister is a little strange. When her body gets hot, a mysterious energy builds up within her, causing a powerful explosion! The force of the blast, known as "Nugu," shreds all her clothes and leaves her completely naked!! But as long as it's only Ryota around, there's no reason to be embarrassed, right? They're siblings, after all.

Note: Mushiatsui kara Nuguu was a web comic originally released on Futaba Channel and the author's website from 2004 to 2012, and later serialized in the September 2012 through March 2015 issues of Tech Gian. The web chapters were published in print by Enterbrain in 2 volumes from August 25, 2011 to March 24, 2014; the Tech Gian chapters were not compiled in volume form.