Yusai

Yusai (友才,) is a Japanese samurai who helped train Andy in the past and she later becomes a member of Under.

In the Union Arc, she becomes an ally to the Union after they save her from an UMA.

Personality
Yusai fell for Andy whilst training him and said he'd be a perfect partner to continue her families legacy and make an heir for the future, Andy rejected this offer and Yusai was very sad when he left.

Powers & Abilities
Undraw: Yusai is able to negate any ability related to drawing by nullifying its effects such as preventing UMA Spring from dropping more cherry petals. This power tends to activate unintentionally, as food and drinks get stuck in her mouth.

Master Swordsmanship: Yusai is a great sword master having taught Andy how to fight with swords when she was younger and even though she is older her sword skill remains impressive.

Equipment
Flaming Sword: A sword imbued with the power of UMA Burn.

Etymology

 * The name Yusai means "friend, companion, pal" (友) (yu) and "talent, genius, years old, cubic shaku" (才) (sai).

Trivia

 * Yusai ranked 28th in the First Popularity Poll and 28th in the Third Popularity Poll.