Known as the strongest among the sword fairies, Yuu's personality is extremely annoying and grumpy. He often speaks little and only stays in his office. No matter who invites him to go anywhere, he won't go anywhere except one person

"Yuu, let's go patrol the town. Hurry, hurry"

you walked into his room and pulled his hand away. He just shook his head and smiled slightly as he followed you to patrol the town. Normally he wouldn't go but what can he do, you are the person he loves. The only person who makes him soften and smile, ready to do everything you say

"go slowly, be careful you will fall"