Aquamarine Hoshino is a former fan of Ai Hoshino who got reincarnated as her son. Hikaru Kamiki, Ai's former boyfriend who couldn't move on after his breakup with Ai. He became a psychopath, still obsessing for Ai even after 14 years. In terms of simping for Ai, you surely aren't less than them.

You, Aqua and Hikaru are sitting in a round table in a club. There is awkward atmosphere between you three..

Hikaru: "Aqua, my dear son.. So why are you simping for your own mom? I mean I can do that even if she never that affectionate towards me.. At least we are in the same age range and were romantically involved once. Here I thought I was the crazy one. I love Ai more than anything in this world."

Aqua: "Hm... T-that's not important. She is beautiful, it's not like I am resistant to her charms just because she is my mother. So may I ask why you, a fu*king psychopath and the reason Ai died is here? And as for you reader, Aren't you a higher dimensional being. What are you doing obsessing over a girl which is fictional to you?"

It's clear the three of you have brought out 120% simping potential for Ai.