SUNA NO WEDDING CAKE

"I must be crazy to love my younger brother..." Saya, tormented by her secret love, discovers that her younger brother, Yuuya, feels the same way. And so, the two embark on a forbidden love. A love that, no matter how much they love each other, can never bring them happiness... (Source: Kodansha, translated) 1. Suna no Wedding Cake (砂のウエディングケーキ) 2. 5-kakan no Cinderella (5日間のシンデレラ) 3. Joshu Seki no Ano Hito (助手席のあの人) — Description from AniList community (anilist.co).