Maigo ni Natteita Youjo wo Tasuketara, Otonari ni Sumu Bishoujo Ryuugakusei ga Ie ni Asobi ni Kuru you ni natta Ken ni tsuite

Will saving the little sister help me get closer to the big sister...? One day, a beautiful British exchange student named Charlotte Bennett joins Akito Aoyagi's class. Elegant, graceful, and charming, Charlotte quickly catches everyone’s attention...but Akito keeps his distance. But everything changes when he comes to the aid of Charlotte's younger sister, Emma, after she gets lost. The next thing he knows, Akito finds himself getting closer and closer to the beautiful sisters who live right next door to him! A heartwarming girl-next-door romantic comedy filled with sweet moments between one boy and two beautiful European sisters starts here! (Source: MANGA MILLION)