Tenchi Muyo and Isekai no seikishi monogatari?

Hey everyone. I know this might sound a little noobish but I really can't figure it out.isekai no seikishi Monogatari? And if so, how?Been trying to find this out for a while now and would really like an answer!
Also in isekai no seikishi Monogatari how does Kenchi's sister have a spaceship? If this is revealed in an OVA then telling me that would be greatly appreciated!

Since Isekai Monogatari is part of Tenchi Muyo Universe and Kenshi is Tenchi's half brother. All female members of Tenchi's harem which technically Kenchi's sisters have their own spaceships and then one most likely seen in the isekai monogatari was Ryu-Ohki:

and one of the female of Tenchi's harem which technically Kenshi's sister that was shown in the series(only silhouette) and was called the mad scientist was Washu:
So if you are interested on getting the story of Tenchi Muyo watch the Tenchi Muyo Ryo-Ohki OVAs

dunno if I answered your question though

@rowanatkinson23 You sure did! Thanks so much. And im gonna get to those OVA's right away. And sorry I think I moght have deleted a part of my question when i first posted it so thanks for finding out what i meant to say!

no worries, I just share an info from one of my favorite harem series with Tenchi Solution (it means that all of the members of the harem agreed to live together or accept and live the situation with everyone instead of fighting)

Haha Im gonna use that from now on. Another quick question if I may, in tenchii muyo or tenchi universe do you ever see kenchi? How do you find out he is his half brother? Is it in the tenchi series?

dunno if I can point everything out from the anime but:
1. his striking resemblance to Tenchi
2. when he was asked on where he learned his swordsmanship he said he learned it from his grandfather, just a country-side old man which fits, Yosho's image and also Tenchi's grandfather(old man disguise)

3. Kenshi tells the principal almost all the traits of his "sisters" in terms of housework. Those sisters were Tenchi's harem and was technically accepted as his family thus becoming Kenshi's sisters. Some of her sisters breaks a lot of things, probably Ayeka and Ryoko, he also observed some housework from the other sisters, probably Sasami and Noike, and the terrible at chores is none other than Mihoshi.
4. He talks about her sisters having spaceships in the house, the one shown was Ryo-Ohki
5. Silhouette of Washu brainwashing him
6. Most of the thing on the top cannot happen if your just a normal/average person
7. for other info that can be seen in the novel and some that are not show in the anime: http://tenchi.wikia.com/wiki/Kenshi_Masaki

so from 1-6 was just my observation and the info on that wiki is more sufficient since some came from the novel

and yeah there is this speculation that he is also a reincarnation of Z... so he is isnt your average human X Jurai Bloodline X Z(Zetto) breed...

hope this helps

ah my fave char here was Doll lol... I like those green haired ladies like Neju from GXP and D/Dee from Dual

I agree with this the ship shown in a flashback was indeed Ryu-ohki and Washu is one of the 3 Choshin Goddesses. She probably knew Kenshi's future and the reason for her sending him to that world.

I really liked how Ryu-Ohki was animated here in isekai since it(probably she now) was shown full crystal that it twisted Kenshi giving him the weird obsession of getting them

Yeah I havent seen tenchi muyo or tenchi universe so im going to get start on those as soon as possible. Does one of them come before the other? I want to make sure. I once watched M. of Haruhi Suzumiya in release date order or something and I watched the last one first. Not the best experience

I still can't shake the feeling that Kenshi being Tenchi's brother seems like something pulled out of nowhere. And Kenshi is kinda similar to Tenchi in regard to their stamina and power...

I dont know if I'm right but... I think you should start with Ryo-Ohki OVA 1 to 3 then go to GXP... I think the Universe is a improved version of OVA 1 with a character name Kiyone that is partnered with Mihoshi... I dunno if it is non-canon since it removes removes Noike as Mihoshi's previous partner and Overlaps tenchi's mother name

well I'm not really that sure about that but I like Ryo-Ohki OVAs to GXP(in GXP you see Noike, not Kiyone)

I suppose it's a little late now but thanks for you answers. I watched Tenci universe and loved it! I'm going to try to dive intothe other split-offs. Wish me luck!