Thinking about a Yuu/you who isekai from Victorian/olden times, they would not want to go back to their time.
Yes, it would take time to get used to new society rules and dress code and learn everything from scratch but in the twst world they can now:
Live without social expectations and forced marriages.
Don’t have to depend on family.
Have their own home and be independent.
Have indoor plumbing.
Less restrictive clothing.
Don’t have to worry about social status (depending)
Before indoor plumbing, they had chamber pots therefore Yuu's canonical reaction to indoor toilet:
Advantage to this Yuu:
Depending on the position Yuu is in, I imagine the craft skills are muy chef kiss. Whether they can fix that creaky old house (Ramshackle) depends on position of their previous life. Are they regular worksman or nobility?
Also, if Yuu lived in village setting of the olden days, got knowledge on plants, food preservation basically cottage core life style. After all no grocery stores and even if there was, most of the time regular folks are taught by their family how to preserve and other skills cause money doesn't grow on trees. So think stuff like learning botany, soap making, making dyes and sewing their clothes.
For noble Yuu, the advantage they is textbook. The rich can afford to have their kids learn different languages, art skills (piano, dancing, painting, etc) alone with physical activity of swordsmanship, archery etc. Along with this depending on the family children do learn how to manage estate, agriculture and such since they'd inherit land or something.
Lets not forget that people back then some really nice penmanship as well as an interesting way to describe moments, situation and emotions. Theyre poetic basically.
Lol imagine Yuu cussing out the Adeuce boys but it's olden time Yuu so like either passive aggressiveness of a nobility like backhanded compliments or street slang of the lower class folk.
