Actually to follow the first episdoe of the OVA3 Chibi is good to go if he has seen most of the Tenchi Universe
..I dont want to spoil it for Chibi, but since my vanity is on the line..Chibi, dont read the spoiler if you dont wanna be spoiled..
Chibi, if you havent seen the previous OVA series my recommendation is to get the videos/dvds because the story is much more enjoyable in the OVA..