Detective Conan: The Conquest Is Underway

The original story's main pairings are broken up

(Breaks up Kaito and Aoko, but keeps Shinichi and Ran together)

[Two male leads + 1v? + Detective Conan (with a little Natsume's Book of Friends) + serious OOC + heaps of personal headcanon + everyone's favorite + all sweetness, no angst + conquest System + raising him from childhood = ?]

The five-person group gets rescued, and all five are on the Black side. This series doesn't involve the group leader.

Takizawa Karasuma is the younger brother of Renya Karasuma, the Organization's boss, and the Organization's beloved young master.

A reborn Conan encounters a System and begins his conquest. You should start building a relationship with your future husband from childhood, right…

What? Takizawa Karasuma? No, no. Now I'm Niu Gulu·Karasuma·Takizawa…

Kaito Kid: “Beautiful boy, I give you a white rose and offer you my most devoted love.”

Sakurai Rin (original character): “Young master, I am your most loyal butler…”

Gin: “Could you stay away from those annoying people? I don't like their scent lingering on you.”

Jinpei Matsuda (reborn): “Taku, thank you for saving my father. I have no way to repay you, so I'll have to offer myself to you…”