Warrior Training System - Chapter 47: Memories to remember (R-18)

She is intelligent, beautiful, calm, and professional. As the youngest chief forensic investigator for the past few years, her future was very bright. All of this, however, changed with a bizarre time-travel.

Based on the popular Vocaloid series, by HoneyWorks, called “Kokuhoku Yokou Renshuu (Confession Rehearsal)“:

Natsuki, a third-year at Sakuragaoka High School, who holds unrequited feelings for her childhood friend, Yuu, who’s in the Film Club. However, instead of being honest about her feelings, she makes him be her confession “rehearsal” partner. Unable to say her true feelings, things start to get complicated when Miou and Akari, who are also in the Art Club, get involved! Will she ever be able to confess for real!?

“Darling, I want…”“Here’s the credit card. Buy everything you want.”“Darling, I want to give you a child!”“That’s unnecessary.”“…”Ye Shengge’s inborn birthmark could only be deciphered by Ji Shiting.However, that man was very aloof and reserved, and he wasn’t tempted at all. And one day when she finally gave up and tried to leave, that man literally carried her back.She yelled, ” What do you want?”The man said with his deep voice, “What you’ve been wanting the whole time.Ye Shengge always thought that Ji Shiting was forced to marry her, yet years after, she realized that it was all part of his plan, and there was no way she could run away from him.

Su Wan is a Realm Destroyer. She shuttles to different time-spaces using the identity of the “Cannon Fodder Ex-Girlfriend”, dedicated to plotting how to happily tear apart the male protagonist and the female protagonist. –There’s no such thing as protagonists who can’t be torn apart, only Ex-Girlfriends who don’t work hard enough~

- Description from Novelupdates