Xiao's sister, who is not related by blood, is also a support partner during secret operations.
| Sworn elder brother | At the original dawn |
|---|---|
| Adoptive father | Arihara Takashi Suke |
| Organizational responsibilities | Supporting Xiao |
Family and partners
Nanami is good at housework, quiet by nature, somewhat reserved around strangers, but becomes easy to get along with once familiar. She cared for her sworn brother, taking care of his daily life and cooperating with Xiao in carrying out organizational tasks.
The adoption life recounted in the original game, Nanami Line
Nanami was once used by her biological parents as a tool to make money using programming skills. After Ryunosuke brought her home, she still tried to hand over her income; He refused to accept money and instead gave her pocket money, hoping she would go to school, make friends, and live the life of an ordinary child.
The first dish recounted in the original game: Nanami Route
After hearing that family members should help each other, Nanami tries cooking with her pocket money. When the first attempt fails, Ryunosuke still praises her for finishing it alone, while Akatsuki says it's bad and finishes the meal; Later, when she mishandled housework, he would step in to help.
Remote support for the original game: Mayu Line
When Akatsuki approached Moyu and connected the USB terminal, Nanami was responsible for remotely obtaining camera data and floor plans, providing clues for infiltrating the research building.
Outpatient and treatment in the original game Chisaki Line
Nanami and Chisaki accompanied Sakaue to the temple. A conflict broke out on the return trip. After Akatsuki protected Chisaki and was injured, Nanami treated her sworn brother in the dormitory.
Follow-up support from two separate lines
In the Hazuki route, Nanami compared footage with AIMS data, narrowing down the suspects to sixteen, and continued to support the tracking after Kido escaped. After the successful suppression device on the Moyu route, she stayed at the academy to support Akatsuki's on-campus mission.
Moyu Route: Report after infiltration
In the Mayu route, Akatsuki reports and apologizes to Ryunosuke after investigating the research building. Nanami took his phone, explained the situation on his behalf, and said she would participate in the operation.
Related entries
- Featured works:RIDDLE JOKER
- Sworn brother:RIDDLE JOKER
- Adoptive father:Ryunosuke Arihara (RIDDLE JOKER)
- Secret Organization Boss:Ryunosuke Arihara (RIDDLE JOKER)
- Action partners:RIDDLE JOKER
- Classmates:Chisaki Mibu (RIDDLE JOKER)
- Original Character Song Vol.2:Sympathy (RIDDLE JOKER / original Nanami character song)
- Laboratory infiltrators supported remotely:RIDDLE JOKER
- The adoptive father refused to accept his own income and gave him pocket money:Ryunosuke Arihara (RIDDLE JOKER)
- The foster brother who finished his failed meal and helped with the housework:RIDDLE JOKER
- Classmates who accompanied Sakaue to the hospital together:Chisaki Mibu (RIDDLE JOKER)
- The sworn brother who treated his own injuries from the light rail incident:RIDDLE JOKER
- Action partners who provide their own image matching and tracking support:RIDDLE JOKER
- Moyou Line: After the research building investigates, we will call and explain:Ryunosuke Arihara (RIDDLE JOKER)
- Moyu Route: Infiltrate the descendants and make phone explanations:RIDDLE JOKER
References
- RIDDLE JOKER: Official Japanese character introduction
- HIKARI FIELD: RIDDLE JOKER character introduction in Chinese
- eddiiee: [Riddle Joker] Nanami√ Play Diary - Spoilers Included
- eddiiee: [Riddle Joker] Mayu√ Play Diary - Spoilers Included
- eddiiee: [Riddle Joker] Chisaki√ Play Diary - Spoilers Included
- eddiiee: [Riddle Joker] Hazuki √ Play Diary - Spoilers Included
- Yuzu Log: YUBESHI2 & Character Song Vol.2 is on sale today
- Yuzu Club: Character song digital release catalog
Data compiled on: 2026-10-07.