(5★) Chaka (Solitary)

Special Ability
''You're an expert... a sword expert''

When HP falls below a certain level, if the SP Skill "You're an expert... a sword expert" is used during certain period of time and you receive a skill, the Expert level will go up. As the Expert level goes up, all the Speeds go up. Certain attacks get strengthened every time the Expert level goes up.

Assist Ability
Critical Damage ++

Requirement:

Critical Damage x 1.6 Time