The tale begins around the end of the 3rd season...

Even with Nobuyuki and Rea's wedding coming up in a few days, the Masaki household, though busy with
preparations for the wedding, their everyday situation is still par for the course for the Masaki house.
In space too, people connected to the Masaki house are making preparations in order to attend the wedding.
Airi is battling mountains of paperwork, and Funaho, who can't attend the wedding because the survival of
Yosho hasn't been made public, gives her wedding gift to Minaho.
A few days before the wedding, people connected to the Masaki house gather on earth and Tenchi meets his aunt Minaho.
"...she reminds me of mom..." that's Tenchi's first impression, quite natural as she's also Airi's daughter.
The scent of trouble is in the air..
Well, I suppose Airi-dono will say the same 
over there, so I will stop pressuring you now.
،حسناً، أعتقد أنّ آيري-دونو ستقول نفس الكلام هناك
لذا سوف أتوقّف عن الضّغط عليك الآن
Aber das bekommst du drüben
sicher auch von Airi-dono zu hören,
Imagino que Airi
también te molestará con eso,
Imagino que Airi
también te molestará con eso,
Enfin,
Beh, immagino che Airi-dono ti dirà le stesse cose, 
quindi la smetto di pressarti.
Bem, eu suponho que a Airi dirá o
mesmo, então vou parar de pressioná-la.
Что ж,