Cannon's Trust Master reward is the Cannon's Blade.
Entries for different versions of Cannon.3★ - No. 1180: The maid serving Sieghard's family. Both competent and multitalented, an unsung hero who does several duties all by herself. She has become used to the family's unique style and it no longer fazes her. Because she's so flawless, the other servants argue every day about her possible imperfections.4★ - No. 1181: The maid of a family that values beauty. She is in charge of the mansion's cleaning, laundry, payroll, gardening, repairs, grocery shopping, human affairs, schedule management, property management, combat, lighting, sound effects, stage production, props, and more. It seems every day her number of duties increases.5★ - No. 1182: A competent maid that served a noble family in Paladia. She unbridledly utilized her talents in production effects for the family's eccentric stage performances. Unperturbed even when the situation eventually changed, it was thanks to her that the noble family was always in the best of care.
Cannon's stats at her highest levels are as follows (with no passive abilities taken into account), along with the maximum amount of stat points that can be increased through pot-enhancements:
Cannon can equip the following weapons: Dagger, Sword, Spear, Throwing.
She can equip the following armor: Hat, Clothes.
She can equip accessories.