攻撃力アップ [kougekiryoku up] or 'attack strength up' in Japanese.
Agito

Type: Auto Ability, Rarity: Normal, Max Level: 5
Target: self, Chain: Automatic, Element: -
Stats (lv1): Effect strength 10, Style cost 4, Style strength 4
Stats (lv5): Effect strength ?, Style cost ?, Style strength ?
Buy: - (sell: 200 gil ability)
Obtain: request Work Hard, Sewing Club
Obtain Recipe: -
Strengthen: 50 gil/95.0% (lv1), ? (lv4), total cost ? gil
Description: Raises attack strength in missions.
Record Keeper

Type: Soul Break, Rarity: -
Target: all allies, Element: -, Gauge cost: 1 bar
Learn: all (equip Red Cap (IX))
Effect: Raises the attack strength of all allies for a set period of time
Other: damage buff is ~x1.25
Other: アタックアップ [attack up] in Japanese, so is in fact another ability entirely from the others on this page
Category: Ability