I can only imagine that either the great grandfather is just punching the air mad about these two or is nodding in agreement like “I understand grandson.🙂↕️ got put a ring on it.”
ik i keep on yapping about this but,
the difference between this and the anime is just too much,
this 2nd witch appeared in like episode 2-4,
and here it's taken 16 full chapters for it to happen