Hi there everyone!
Rain here with a challenge fic. Unfortunately, I don't have any time to write it up myself. So here are the details.
DBZ x To Love-Ru
Genre: Comedy, Smut, slice of life with sprinkles of actual plot.
Summary: End of GT Goku is bored. Since his family is dead due to the fact they got old eventually while he's still young. A perk of being a saiyan was the long life span. Finally having reached his bodies prime again he has nothing better to do.
Going over to visit Bra's lab to relieve said boredom. And messing around with stuff for shits and giggles, he tempts his luck and is teleported by a prototype teleporter. Thus he lands in the to love ru verse.
There Mikado senses his heavily suppressed but still ridiculously large ki and definitely not human ki and meets him to see if he's not a danger. Seeing his predicament of being lost, she offers to let him bunk with her and passes him off as the new gym teacher so he can earn his keep.
He stays, meets the human cast (that is rito, yui, haruna etc). He becomes mildly popular for his eating, fit body and ridiculous strength for a human (lol). Mikado realizing later he's actually even stronger, asks him if he'll deal with any bad aliens that would harm humans and goku agrees since he is a guest of the planet.
When lala teleports to earth, goku senses her alien and higher ki and teleports to check if she's gonna cause problems. later zastin shows up and after some banter and misunderstanding gets knocked out by goku in one punch.
Goku after hearing lala's reason for running away offers to protect her from her would be suitors until she feels ready to go back home.
Thus the plot continues etc etc
A few pointers; DBS can start in conjunction with this fic, after goku and the cast settles in. Beerus, zamasu, U6 can be added if you want.
Also Goku actually gets teleported to another guardant of the universe and since king kai doesn't have any jurisdiction there he can't contact him and goku being suppressed doesn't help either in finding him.
Goku can't IT back because he can't sense vegeta (who is still alive) since he hasn't powered up.
Here's a fun scene (would be great if you add it). Goku's in the shower when he senses her and teleports with IT and appears in rito's bathroom as well. So three equally naked people are stuck in a modest tub and thus are squeezed up.
Mikan shows up and sees the ridiculous scene and comments on her brother's (you can also gender bend him or add his female counterpart riko) sexual preferences.
Note; some fun facts, saiyans start actually aging past their prime when they hit 80, thus technically they could reach 200 years.