Toaru Majutsu no Index - Volume 22, Chapter 11: In the Shining Golden Sky. Star_of_Bethlehem.

when the most beautiful and popular girl of the whole campus offered Adam Eden, a certified loner the once in a lifetime offer to be the photographer and manager of her Only Fans account and also receive a percentage of her earnings, he was rightfully suspicious.However, in a desperate attempt to get some easy money, he went against his better judgement and accepted her deal.This decision would not only change his life, but would mark the beginning of his journey to Conquer every girl he's ever wanted–––––––––––––––––––––––––Every character in this book is 18 or olderNo netorase, some Netori (MC does the stealing not the crying)

In this period where countless supporting lead actors always attempt to counterattack, turn over a new leaf or simply refuse to take up the role, his purpose of existing is to fill the role of a good supporting male lead and uphold his duty to the best of his ability. To add the needed lustre to storylines and this world. Only, it’s a pity that someone who is not afraid of god-like enemies will be afraid of pig-like teammates.

Bitterly, he realises that for some unfathomable reason, he is being bothered time and again by a bastard who refuses to follow the script… In order to walk the path of a good supporting male lead, he engages in a battle of wits and courage with that person. Loving each other and killing each other, one ultimately cannot escape fate’s teasing– why is it so difficult wanting to be a responsible and diligent supporting male lead?! QAQ

- Description from novelupdates

This novel is also known as Mr. Mayor Please Be Kind

She is an old spinster of average status. He is young and powerful, achieving status as a high ranking official of River City within a span of just a few years. She had a deep love, but being unable to endure the harsh reality of life, she left. He had also loved once before, but he had been suffered betrayal from his girlfriend and friends, he delayed his marriage.

Having exchanged a few coincidental glances with him, she mistakenly assumed him to be her blind date, and without asking any other questions, she directly inquired him: “Do you want to come with me to get a card (marriage book)?”

He recognized this woman, and holding her with a feeling that was neither love nor hate, pleasure replacing surprise, he nodded: “I’m free in the afternoon!” He had not corrected her.

As per martial business, she offered him an agreement, calmly stating: She will agree to roll the bed sheet once a week! He quietly raised an eyebrow, mouth half-smiling, and flamboyantly signed his name. So because of this agreement…

“Wife, it’s late, let’s get some rest,” the man stated. The woman looked in to his eyes, nodded, and turned off the bedside lamp. In the darkness, a pair of large hands probed into her clothes, caressing her skin like satin. It was a beautiful night.

On the second night: “Wife, it’s late, let’s get some rest, ” the man stated. The woman looked in to his eyes, nodded, turned off the bedside lamp and lay down to sleep. His dark, large hand reached up to her again and slid into her clothes, probing her smooth skin until it was then suddenly caught.

“What are you doing? ” the woman asked coldly.

”There is a marital agreement to fulfill! ” the man said, take it for granted, and then pressed on top of the woman. It was a spectacular night.

The next morning, the woman who was brimming with an aching waist and grief, came out from the study room with eyes wide open, angrily said: “Su Yicheng, you crafty Official!”

The agreement read: marriage, rest once a week!

Love after marriage, warm and spoiled.

- Description from Novelupdates

I finally managed to kill the demon lord.