Kaiser

The Justice Bureau's Deputy Chief Prosecutor on Tier 2: expressionless, precise, and — by his own confession — helplessly in love with Melody's music. Shelters Fugetsu, Melody, and the beast-'Kacho' under witness protection while working to keep the Bureau out of Benjamin's grip.

Addendum ch.402He is no bystander: he proposed poisoning the unconscious higher princes himself, ferried Kacho's bombshell letters around Tier 1, and set tripwires against a martial-law takeover of the Bureau. Melody cannot read a single irregular beat in his atomic-clock heart — which is exactly why she does not trust him.

Addendum ch.410When Benjamin marched in to consolidate the three branches, Kaiser stood witness with Mizaistom and Botobai — privately clocking the First Prince's pallor, doing the arithmetic on TSK-17, and betting everything on stalling one more day.