BLUE REFLECTION Quartet How to Play BLUE REFLECTION SUN in Quartet
Shiho Kasuga's rebuilt manga arc with Second Light combat, new events, and freshly recorded voice work.
SUN is Quartet’s biggest rebuild
BLUE REFLECTION: SUN covers Shiho Kasuga’s manga storyline. In Quartet it is not a portable port with touched-up pixels—it is a rebuilt console remake using battle systems derived from BLUE REFLECTION: Second Light. That decision makes SUN the mechanical bridge between Hinako’s classic Ether fights and Ao’s open-world sequel.
Quartet adds 24 events, new character episodes, and newly recorded voice lines exclusive to this compilation. Veterans who cleared SUN elsewhere should still expect fresh scenes and combat readability improvements. Play SUN third in the Recommended play order unless you accept spoilers from deviating.
Combat: Second Light systems in a linear RPG
SUN replaces the old portable battle flow with Second Light-inspired mechanics:
- Free-movement combat arenas with dodge-centric defense
- Skill chains rewarding aggressive positioning
- Party synergies among Shiho’s allies with role-specific abilities
- Boss phases telegraphing area attacks more clearly than legacy SUN
Before tackling optional fights, enable battle speed and review guard tutorials on Systems. Minimum PC specs from Platforms and requirements struggle here more than in RAY—SSD installs help load rebuilt assets quickly.
Consult Tier list when choosing who to field in optional encounters; SUN parties differ from Second Light’s eight-member expanded roster but teach similar synergies.
Story structure and the 24 events
Shiho’s arc interleaves school drama, Reflect missions, and manga-exclusive beats. Quartet’s 24 added events deepen side characters and foreshadow Second Light cameos. These events:
- Unlock through bond thresholds and chapter progress tracked on Walkthrough
- Feature new voice recordings—do not lean on event skip until you have heard them once
- Feed relationship charts in the Reference Database
Pair episode hunting with Characters bios to prioritize bonds that unlock combat support skills.
Exploration and pacing
SUN levels blend hub exploration with instanced missions. Compilation faster movement applies in safe hubs; mission zones may restrict speed for tension. Autosave triggers at mission boundaries—manual save before multi-phase bosses anyway.
Unlike RAY’s still-heavy presentation, SUN returns to full RPG pacing. Expect this module to consume a sizable fraction of Quartet’s 70 to 80 hour total—more than RAY, potentially less than Second Light depending on optional content.
Bonding Shiho and allies
Bond episodes mirror Gust’s school sim heritage:
- Schedule hangouts between main missions when Walkthrough flags free windows
- Gift or dialogue choices affect support skill unlocks—not always visible until combat tests them
- Missed bonds may lock out optional scenes but rarely hard-block story; completionists should chase all 24 events
Subtitles remain essential—Japanese voice is primary per Languages and audio.
SUN versus legacy portable SUN
Quartet explicitly excludes prior DLC imports and old saves. Treat this SUN as a new playthrough benefiting from:
- Second Light battle vocabulary you will reuse in Ao Hoshizaki’s campaign
- Cross-title character references if you finished BLUE REFLECTION and RAY
- Compilation QoL—event skip, fast-forward, texture upgrades—from QoL features
If you only know SUN from manga reading, gameplay teaches Reflect mechanics hands-on—do not skip SUN for Second Light unless you accept narrative gaps.
Party members who appear later in Second Light
Several SUN and RAY cast members become eight extra party members in Quartet’s Second Light remaster. Learning their SUN bonds makes Ao’s optional team building faster—read How to play Second Light before spending upgrade resources twice.
Platform and save notes
PS5, Steam, Switch, and Switch 2 each run the same rebuilt SUN data. No save transfer exists between Switch SKUs. Steam lists 55 GB for the entire compilation—SUN’s rebuild contributes significantly to that footprint.
Post-SUN checklist
Before launching Second Light:
- Review Reference Database timelines for Shiho-to-Ao connections
- Confirm QoL settings—open-world combat benefits from tuned battle speed
- Redeem Preorder bonus frames if you own Second Light photo DLC early
- Skim Review for community impressions of SUN’s rebuild quality at launch
Track patches on Updates if event skip or battle speed bugs appear in early builds.
Related pages
What’s Included details rebuild scope, Getting started covers launcher basics, and Tools may host episode checklists when fans publish them.
Frequently Asked Questions
Quick answers to the most common questions.
How is Quartet's SUN different from the old portable version?
It is rebuilt with Second Light battle systems, adds 24 events and new episodes, and includes newly recorded voice lines.
Do I need to finish BLUE REFLECTION and RAY before SUN?
Recommended for story context, but Quartet allows any order. SUN assumes basic Reflect literacy.
What are the 24 events in SUN?
Additional scenes and side content expanding Shiho's arc and tying into the wider saga—track them via Walkthrough.
Does SUN use the same combat as Second Light?
It uses systems derived from Second Light, making SUN a mechanical preview of Ao's game—details on Systems.
Can I import my old SUN save into Quartet?
No. Prior saves and DLC do not carry over. Start fresh to see new episodes and voice work.