I was at Minato-san's place still so I only found out when they posted the video.

[Ken gets to his feet and walks over to where Shinjiro's wrestling with the lights. From his height he can see it right at eye level, and he reaches into the tangle -- his small fingers can fit into the smaller knots -- and starts tugging until he pulls out one end.]

Krem's really smart and works well with Koromaru.