• Book Name: Shouwaru Tensai Osananajimi To No Shoubu Ni Makete Hatsutaiken O Zenbu Ubawareru Hanashi Manga
• Alternative(s): 性悪天才幼馴染との勝負に負けて初体験を全部奪われる話 ; Shouwaru Tensai Osananajimi to no Shoubu ni Makete Hatsutaiken wo Zenbu Ubawareru Hanashi ; How I Lose Bets With My Sadistic Gifted Childhood Friend and She Steals All of My Firsts.
• Genre(s): Romance School Life
• Author(s): Inukai Anzu
• Status: Ongoing Download Manga
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Summary: A twisted girls' love story featuring: An honor student hiding behind a devilish mask x An ordinary girl who hates losing.Wakaba Yoshizawa has a childhood friend named Komaki Umezono.This girl wore the mask of an honor student with good morals who's blessed with both beauty and brains, but in reality she's an evil genius who looked down on people. For the sake of regaining the dignity she lost to Komaki, Wakaba challenges her to a match, but Komaki tells her "Each time I win, I will take one precious thing from you." as a condition!? Every time she loses to the girl she "hates", her true feelings get exposed.(Source: Young Ace Up)