In Douluo Dalu, Reborn as Aizen

The author may not know how to write novels, but he understands Aizen

Fortunately, there is no nonsense about writing Bibi Dong, otherwise it wouldn't be Aizen.

I feel like there is something wrong with the timeline. Hu Liena has already reached the fourth ring before Bibi Dong hunts Xiao Wu's mother. This means that Tang San has not yet awakened his martial spirit, and there are at least eight, nine or even ten years before the competition. However, Hu Liena (20 years old) was only five rings at the time of the competition in the original work. It is impossible for her to advance to a level in one year. The golden generation is all 12 years old and three rings. It is also possible that the protagonist's various research and teachings allowed the three members of the Golden Generation to reach the fourth level faster, but this book does not seem to explain it at the moment. In addition, it is impossible to cross the tenth level without adding the fairy grass in the original book just by relying on the protagonist's research and teaching. This is the doubt I have now.

If you write about Aizen, will you still have a harem?