I Became My Own Son and Awakened a Hobby System?

[Transmigration + System + traditional culture + identity swap + middle-aged protagonist + multiple heroines]

After accidentally transmigrating to a parallel world, Zhang Yan became his son, Zhang Ji.

[Hobby System awakened!]

1. Fishing mastery

2. Increased sex appeal

3. Doubled stamina

4. Yue opera mastery

5. Go mastery

How could there be any doubt? I choose number five!

In this parallel world, traditional culture is all the rage, and Go is triumphant!

At last, I can get into university on the strength of my Go skills and bring honor to my fellow transmigrators.

But isn't my family situation a little too unusual?

I became my own son? My former wife became my mother?

As for my counterpart in the parallel world, he became the anchor for the awakened System!

Music, Go, calligraphy, painting?

The more hobbies, the better.

Opera, antiques, folk customs, and the occult are all welcome too.

Watch as a middle-aged man in his forties, who has accomplished nothing, enters a parallel world and enjoys life with the help of a System!

Well, even a transmigrator can't solve the problem of his former wife, now his mother, being a lesbian, while his counterpart in this world gets to lie flat with his son.