Zutto! SA Off Summer [English], an hentai doujinshi parodying the Sword Art Online series, by Kawase Seiki
Sugu and her brother are at a festival, and her yukata has the expected effect on her brother. The rest is fap materials, drawn rather well, enjoy your meaty summer wincest ^^
Honest warning, though, the dialogues felt bad a number of times, here, for instance: – “Come, here’s my Frankfurt meal.” – “Ooh, you bully! To have me munch on that like that!” ¯\_(°_o)_/¯
Red_Piotrus, Springborn and PureEnergy, from the E-H Cove, are behind this release, thank you!
By the same artist, I also share SAOn&Off SUMMER and SAOff Autumn.