Kyu is a good Sealstone daemon used mainly in an Anima defense team.
Ultimate form is best fused with Kyu magatama.
Original form can be fused with Maggie, in order to raise her skill level.
This is not recommended as you can only obtain 1 Kyu from sealstone completion, but you may alternatively fuse Maggie to his Original form if you do not wish to transmigrate him to Ultimate form.
Main: "There is nothing my arrows cannot pierce!"
Release: "I bow down to you! Take me to Yoichi, please!" -The soul of the bow with which the famed samurai marksman Yoichi shot a fan that was placed on top of an enemy ship. He was sealed away by Heike.
Skill: "I'll put an end to this."
Pre-Transmigrate: "Hey, <Player's Name>. It seems as though my aim can get even more precise still..."
Main: "I always hit the bullseye."
Skill: "Let me pierce right through a vengeful spirit..."
Transmigration: "I take <Player's Name> as my true master!"