MTL - 80s Wedding Night: Cannon Fodder’s Original Partner is Gone - Chapter 251 woman's identity

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates

Hello, I'd like to ask your opinion on “Yukima Azuma”Kasumigaoka Utaha: I was here before... I taught him the things that couples do, but he used them to please other girlsSawamura Eriri: It would be better if I wasn't a tsundere, saying one thing and doing anotherYukinoshita Yukino: He's the light in my life, I might not have been able to bear the darkness if I hadn't met himYukinoshita Haruno: The bastard who ran away after sleeping with meHoshino Ai: My only true love, my white moonlightWhat's your relationship with him - ex-girlfriendSora Ginko: Oh, just a thieving catKato Megumi: Just a thieving catSagiri, Bocchi, Shinomiya Kaguya, Kirisu Mafuyu, Suou Yuki, Alya: A thieving cat!--------------------------------I do not own anything in this fanfiction----------------------------------The schedule is from Monday to Saturday 2 chapters a day and 1 on Sunday----------------------------------------English is TOTALLY NOT my language,So it's probably not very good, but I tried my best

This world is Heaven.

Because this world has everything you dream of, everything you wish for.

This world is Hell.

Because everyone in this world are parts of a never-ending massacre.

Are you fighting to survive, or fighting to come home?

- Description from Novelupdates

William Scott, a soldier, returned to the city with the goal to live the rest of his life peacefully. He would practice the lifestyle of a retired person.

However, his mother set him up on blind dates time and again. Unwilling to keep up with her arrangements, he was left with no choice but to pretend to be in a relationship with Yvette Quinn, a female CEO who was also forced by her parents to go on blind dates.

To his surprise, this was only the beginning of many troubles to come. Before he could get to settling those troubles, he first needed to sort out an even more pressing problem.

The girl looked at him and asked, “Take a guess. Am I the elder cousin or the younger cousin? As my boyfriend, you should be able to differentiate between the two of us, right?”

His contract girlfriend was so unprofessional. Although they had an agreement, she was always asking her younger cousin to take her place and pretend to be her around him.

What should he do about that?