Hah! Mochi-sensei isn't even bothering to hide the fact that Nene and Yuu are in love, spelling it out like that (the comic is kinda subtle on the subject).
Kagaya FamilyYoungerDaidou AyumuOlderSistersIn love with each otherKagaya YouKagaya KukiKagaya NeneKurosawa KanamiKagaya YuuOldestSecondThirdFourthFifthLoves herKagaya MikiKagaya TsubomiLoverKagaya HanaFriendFriendHayashi Kotoyo