Checked-in boss knowledge
Kai
Solo dodge fight: spend Chrono Gauge on Chrono Break during Time Distortion and push Fever to 10,000 for refunds and a groggy.
Event boss. MapleSEA: ran in Challengers World Season 3 only, from 3 Jun 2026 (after the v251 patch) until it ended at the 30 Sep 2026 maintenance; solo only. Not currently available.
- Boss level
- 270entry 270
- Defence (PDR)
- 380%
- Party
- Solo
- Recommended
- low-to-mid 20kSolo with Sol Hecate
HP
- Phase 1
- 63t
- Phase 2
- 63t
Overview
Chrono Gauge · max 1000
- Chrono Break off
- ↑ +24 per second
- Start Chrono Break
- ↓ −90
- Keep it on (after 3s)
- ↓ −30 per second
- Getting hit
- ↓ drops
- Dodge during Chrono Break
- ↑ +1 Step charge
Fever Count at the end of Distortion
- 6,000
- ↑ −10s cooldowns
- 8,000
- ↑ −20s cooldowns
- 10,000
- ↑ −40s CDs + 10s groggy
- Rules Solo, 20 minutes, 5 lives. One HP bar; at 50% damage pauses while he becomes Phase 2.
- Weekly clear One per Maple ID (reset Wednesday 23:59 SGT), outside the weekly boss limit.
- Chrono Gauge Max 1000; refills while Chrono Break is off, drops when you are hit.
- Time Distortion When the side timer ends (about 20s, 33s with Chrono Break). Too fast to dodge without Chrono Break (Tab).
- Chrono Step Space: a dodge like FA's parry, no damage reward. 3 charges, 5s recharge; hold down to dodge in place.
- Fever Count Rises in Time Distortion, drops on hits; the end total cuts cooldowns.
- No binds in Distortion Nor in groggy (Origin absolute binds excepted). Reaching 50% mid-Distortion ends it early.
Danger
- Holographic Afterimage Phase 1's hardest: three sets of four strikes, then a late final strike.
- Distortion lasers Cost the most Fever; on Hard one hit can rule out 10,000.
- High Speed Slash Phase 2: about 126 slashes; Step refunds cap at five.
- Edge laser walls Green walls guard both edges; do not camp corners.
- Hard extras Swiftness teleports in and stuns 4s; map patterns drain Chrono Gauge.
Tips
- Sound on Step to the rhythm of Holographic Afterimage.
- Sweeping lasers Stand mid-map; Step toward the incoming laser.
- Dragon Thunder Step in place on a warning, or Step into it as it fires.
- Great Whirlwind Step near the blue safe zones for refunds on later hits.
- Stand on him Avoids the Phase 2 Recall Strike hologram and sword waves.
- Burst around groggy A 10,000 Fever run gives about 1.5x the bursts.
Notes
- Season over Not in the boss catalog; the MapleSEA season ended on 30 Sep 2026. Kept in case Kai returns.
Recommended · Normal Solo in the low-to-mid 20k range (with Sol Hecate).
Sources
Research checked .
- MapleStory Complete Kai GuideiSIingGunz · guide
- MapleSEA v251 - Challengers World Season 3 and Seasonal Boss KaiNexon (MapleSEA) · official