Akira Otoishi
Electric guitarist. Red Hot Chili Pepper plug-in invincibility.
Difficulty scaling
Engine-side ATK is a sentinel — damage flows through crit boost. Each tier ratchets crit until Hell locks in a ×2.5 multiplier on every swing.
Normal
Mon #534100115 skill IDs
4100100, 4100111, 4100121, 4100131, 4100141 Advanced
Mon #534100125 skill IDs
4100100, 4100112, 4100122, 4100132, 4100142 Difficult
Mon #534100135 skill IDs
4100100, 4100113, 4100123, 4100133, 4100143 Nightmare
Mon #534100145 skill IDs
4100100, 4100114, 4100124, 4100134, 4100144 Hell
Mon #534100155 skill IDs
4100100, 4100115, 4100125, 4100135, 4100145 Lore & design notes
Akira's gimmick is plug-in invincibility — his kit lets him enter an unkillable state by drawing electricity. The game encodes that with 1.2× dmg_reduction (12000) and 1.2× secondary defense (12000) at every tier, which is unique among Infinity bosses. He hits harder than Tarukus or Wamuu at any difficulty, but the trade-off is that he is a pure single-phase fight — no transformations.
Counter team
Diamond is Unbreakable squad
Lineup
- Josuke Higashikata — Crazy Diamond burst + sustain
- Okuyasu Nijimura — shred / The Hand spatial damage
- Koichi Hirose — Echoes 3 Freeze for crowd control
Why it works
Part 4 squad bonus stacks with Josuke's innate sustain. Echoes 3 Freeze is the cleanest answer to Akira's plug-in windows because it pauses his action queue entirely.
Watch out
Akira's dmg_reduction is permanent, not conditional — your raw DPS calculations need to bake in the 1.2× effective HP multiplier or you will under-budget your burst window.