The supporting character's harem is very normal - Chapter 432 Do you want to check?

She was disfigured and her mother died an innocent death. A cup of poison wine was not enough to kill her and she had to die by plunging into burning flames! Before entering her next lifetime, she vowed to change history and get her revenge!

When she opened her eyes again, she was 13 again. Her mother had just passed and her father had yet remarried. To prevent history from repeating itself, she took careful steps.

However, she ended up discovering a 30-year-old mystery case that had been hidden all these while. She had been reborn as a beauty and was not going to give up on herself.

She was going to live out her best life with her alluring charms!

- Description from Novelupdates

Mc unexpectedly got into a very funny accident during a mission and died then reincarnated in this new wonderful world.

Before reincarnating he met a very beautiful goddess who unexpectedly took him as a student under his one wish which the goddess decided to grant him.

He learnt various kinds of things under goddess teachings and spent 1000 years practising them by heart under her watch.

Mc wisely used those years to learn everything he can handle and was sure he would need them.

So that’s how he got the knowledge to become Op quickly with a bonus as an eternal companion, Aashi.

After reincarnating in this world he started to fulfil his dreams one by one like having a big family with multiple beautiful and capable wives, and along the way conquering multiple realms.

After fulfilling most of his desires he sat in a peaceful home and said, “Now I can say for sure, my wish as a lazy otaku has been fulfilled. I remember I haven’t seen the new anime, my lovely wives, do any of you want to watch this anime together with me as I starting so hurry up otherwise, you will miss it.”

Disclaimer:

This is the story of Lazy Otaku who got the chance to fulfil his long-cherished wish.

So come join our 1000year old otaku soul, in his journey to be horne..cough…I mean a journey to conquer countless realms and how he makes the strongest & largest family in all the realms.

.....

Xin You was born with a pair of different pupils, and can occasionally see the bad things that are about to happen to others. This is her trouble, but also her confidence.

The people who eat melons in the capital suddenly realized that the cousin girl in Shaoqing’s mansion who was under the fence became hardened!

- Description from novelbuddy