GAR-308 — The First Galson Av Project Grand Prix Nominated Work. Special Edition Of "I Got The Body Of A Gal." My Little Brother, Who Always Bullies Me, Suddenly Transformed Into A Busty Beautiful Girl! While The Two Brothers Were Sleeping In The Same Room, I, A Virgin, Couldn't Help But Get Aroused...

My brother, a total delinquent, has been infected with a mysterious virus and turned into a girl! What's more, she's a beautiful girl with big breasts! I (the older brother) am constantly horny as we spend every day in a room together. When she gives me a handjob in exchange for pocket money, does she start to change into a woman in her heart as well? After masturbating, being violated by a group of senior delinquents in a threesome, and having lesbian sex with his girlfriend (♀), who will he choose?