Original abstract artwork generated by ikuwayo!
Rikka
- en Rikka
- ja 六花
- ja りっか
- en Rikka
- zh-Hant 六花
- zh-Hans 六花
She has been in the library longer than any archivist. She does not shelve anything; her work is remembering which books once existed.
At a glance
- Role
- Second lead
- Recorded works
- 2
1 items hidden by your spoiler setting — Change spoiler setting
Recognition Card
What lets you pick her out across a hall.
- White hair and violet eyes in both forms
- A six-petalled snow motif at the cuffs
- Never stands near a window
- Pronunciation
- REEK-ka
- ↳
- The character in The Tidal Library whose form changes with the tide.
- Cosplay recognition difficulty
- 4 / 5
Character Prism
Structured design and personality DNA. Each entry is labelled by what kind of statement it is.
Design language
Appearances
- The Tidal Library Visual novel · 2018 · prime Second lead Debut
- The Tidal Library: High Water Edition Remake · 2025 · prime Second lead
Forms
- Low Tide Alternate age Minor
The form she takes when the water is out: a child, short-haired, in a plain robe. Every scene in this form is written and framed as a child.
Popularity
These describe attention and recognition. They are not a rating of a character’s worth.
Discovery
▼ 1.770.1
3 independent sources · discovery-v1
Score components
| obscurity | 0.66 | × 0.45 |
|---|---|---|
| editorialRelevance | 0.88 | × 0.35 |
| durability | 0.48 | × 0.20 |
Icon
▲ 1.449.9
3 independent sources · icon-v1
Score components
| durability | 0.48 | × 0.45 |
|---|---|---|
| breadth | 0.30 | × 0.30 |
| franchiseActivity | 0.70 | × 0.15 |
| editorialRelevance | 0.88 | × 0.10 |
Pulse
▼ 3.961.5
3 independent sources · pulse-v1
Score components
| momentum | 0.60 | × 0.40 |
|---|---|---|
| franchiseActivity | 0.70 | × 0.25 |
| exposure | 0.34 | × 0.20 |
| editorialRelevance | 0.88 | × 0.15 |
Attention over time
Six monthly observations from one source, one metric. Counts from different platforms are never plotted on the same line.
| Date | Value |
|---|---|
| 2025-09-01 | 1599 |
| 2025-10-01 | 1621 |
| 2025-11-01 | 1523 |
| 2025-12-01 | 1681 |
| 2026-01-01 | 1545 |
| 2026-02-01 | 1589 |
Sources and provenance
Where each value came from, how confident it is, and when it was retrieved. Disagreements are shown, not resolved silently.
age_class · 1
| Value | Source | Data confidence | Kind | Retrieved |
|---|---|---|---|---|
| "multiple" | ikuwayo! demonstration corpus editorial-approved · CC0-1.0 | high | canonical |
species · 1
| Value | Source | Data confidence | Kind | Retrieved |
|---|---|---|---|---|
| "spirit" | ikuwayo! demonstration corpus editorial-approved · CC0-1.0 | high | canonical |
spoiler_free_summary · 1
| Value | Source | Data confidence | Kind | Retrieved |
|---|---|---|---|---|
| "在圖書館裡待得比任何館員都久的存在。她不整理書，只負責記得哪些書曾經存在過。" | ikuwayo! editorial editorial-approved · CC0-1.0 | high | editorial |