Getting Reacquainted Episode 17

Seina leaves the girls behins to help out at his parents store and heads off on his bike with Fuku to search out the elusive Washu, mother and creator of Fuku. But Seina meets up with more than Washu as he gets reaquainted with old friends like Tenchi, Ryoko, Aieka, and others. But Seina's visit is cut short by an emergency call from GP, and he's rushed away, not even getting ot eat Tenchi's wonderful cooking. What dangers loom on the horizon?