From [JShoujo Scans](https://www.mangaupdates.com/groups.html?id=2716): Chie's been in love with her next door neighbor, Masao, ever since he moved in with his family five years earlier, but he always treats her like he would a younger sister. Masao's younger brother, Yukio, on the other hand has secretly harbored feelings for Chie for almost as long of a time. One day, Masao suddenly announces his engagement to a girl she'd never met. Will this really be the end of her unrequited love? *Note: This series also inspired an image album recording in the late 80's, with music composed by Haruo Kubota and lyrics by Maki Kimura (alongside tracks inspired in [Machi to Hito no Romansu](https://mangabaka.org/series/s4hqd7h/machi-to-hito-no-romansu) and [Ishindenshin no Otsuki-san](https://mangabaka.org/series/jfsy4dr/ishindenshin-no-otsuki-san)).*
The guardian spirit of Mariko, the descendant of Hatamoto, is the princess of the ancestor's daimyo. Curiously, only Mariko can see the princess...?