The supporting character's harem is very normal - Chapter 438 Make a choice

A lonely soul, which was placed under the care of the Lord Protector’s Manor, ended up having her lover stolen by the family’s eldest daughter and dying tragically the day before her wedding.

Hikaru Nozomi, an ordinary university student, gets recruited by the Order of the Elements after awakening the Element of Light. And his mission? To find the other 9 Elements.

Michael, formerly a military veteran turned mercenary, was living quite a peaceful and slightly eventful life. That was until an accident happened that caused him great misfortune, rendering him unable to continue being a mercenary. After that point, his life spiraled into that of an alcoholic, eventually leading to his demise. Before he died, he saw something odd; it was a blue hologram with the words ’Do you wish to start anew?’ Michael readily accepted and was thrust into a fantasy world with a mysterious system companion that seemed to be hell bent on making him the best healer in the world. However, as he began unraveling mysteries, he found out his identity was not as simple as it seemed.

I am merely a reviewer, albeit the products I review are slightly different. For example, I review quantum computers, artificial intelligence, anti-gravity mech armor, planetary engines, sublight colonial ships, stellar detonators, etc…