Any Clues About Why the Sawada Family Only Produces Good-for-Nothings?

You transmigrated.

In this life, your name is Sawada Chiyohime.

You have a twin brother.

So, there's quite a lot to take in about your identity after transmigrating.

But that's all right.

After all, you're just a gloomy, shut-in good-for-nothing.

(The blurb is in second person; the story is in third person.)

Reader's notes:

1. A very old-school sweet and swoony story, the kind where you step in a puddle on the street and transmigrate.

2. The female lead won't get stronger. She's a shut-in good-for-nothing right to the end.

3. Lots and lots and lots of people have a thing for the female lead.

4. By "old-school," I mean stories that go back as far as twenty years ago. (For example: Qing Guo ○ Ling, Daughter of the Nile ○, Twelve ○ Records...)

5. I might break up some original pairings, but I'm not sure which ones.

6. Just writing for fun, updates whenever I feel like it, and it might get a paid release.

Theme: Traveling between different worlds with childhood friends.