"Momiji to One Room ~A Certain Summer Day~" is a short story supplement produced by CRYSTALiA for "Koi Getsu Yureru Koi Akari," focusing on a day during summer vacation between Momiji and Iori, depicting their interactions after the main story.
| Title of the work | Autumn leaves and a studio apartment |
|---|---|
| The publication date listed in the materials | 2021-07-30 |
| Platform | PC |
| Genre | ADV |
| Development | Crystalia |
| Script | Ryo Wakase |
| Key animation | ぺろ |
| Music | ALNEAR (Ryuki Aruna) |
| Website address recorded by the source | http://crystalia.amusecraft.com/oneroom2/index.html |
Source: Structured works maintained by the Bangumi community, filtered and rearranged by this site.
Twenty-four hours in the dormitory
During the summer vacation, many students returned to their hometowns, and members of the Huang Group remained at school. Momiji noticed that one day everyone else was about to leave the dorm, so she went to Iori's room, hoping to give them some undisturbed time. The story is organized into a limited day, focusing on her interactions after she actively seeks a chance to be alone.
The position of the short story supplement
It continues existing character relationships, developing everyday life outside the main story into an independent short story. The official website uses SIDE MOMIJI to mark the story on the side of the autumn leaves; The also introduced SIDE ASAHI centers on Asahi's need to rest after the Yamato Festival. Both stories have their own starting points and product entry points; the Asahi arc plot does not belong to the Momiji arc.
and the reading relationship with this article
Character titles, dormitories, and the Takarazu Group backgrounds are retained from 'Red Moon Swaying Love Akari.' After becoming familiar with the main story, it's easier to understand why Momiji cherishes this solitude and the usual relationships between Iori and the other members. The day the dormitory was temporarily empty provided a space for existing relationships to interact differently from group life.
A day of autumn leaves
During summer vacation, most dormitory students returned home, while broom group members stayed at the academy. Momiji noticed that the others had just left the dormitory temporarily, so she went to Iori's room, hoping to spend the remaining twenty-four hours alone with the two of them.
Asahi's day off
Asahi often visited Iori's room and later stayed temporarily there. She was busy with the festival and showed signs of fatigue, so the other members asked Iori to arrange a day of complete rest and agreed to accommodate her wishes that day.
Source: Structured works maintained by the Bangumi community, filtered and rearranged by this site.
Related entries
- Characters:Autumn leaves (autumn leaves and studio apartments)
- Characters:Asahi (Autumn Leaves and Studio Apartment)
- Characters:Iori (Autumn Leaves and Studio Apartment)
- Included chapters:SIDE MOMIJI
- Included chapters:SIDE ASAHI
- Setting and Setting:One-room broom group and academy dormitory
References
- Bangumi Entry for works: Autumn Leaves and Studio Apartments
- Bangumi Copyright Notice
- CRYSTALiA dual short story official website
- Official CRYSTALiA story image
Source author: Bangumi article contributor and community maintainer; License: CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0/); Adaptation: This site filters and reorganizes structured facts, without copying the article summary.
Data compiled on: 2026-10-07.