I'm A Spider, So What? (WN) - Chapter past-arc-21: Past Arc 21

The Student Council President’s Secret Laid Bare (生徒会長のセキ裸ラな秘密) is fairly standard 2D Dream Bunko fare but with an exhibitionism theme.

Basically, it’s about a guy who discovers the student council president is an exhibitionist and gets roped into helping her with that fetish.

【Sweetness & Bittersweetness + Mutual Redemption + Love Over Time】Xia Zhi got married to He Jinnan, with whom she had a one-night stand. He Jinnan is handsome, good-natured, gentle, and considerate towards her. He takes care of her, transfers money when she's out, and helps her deal with mean people. In every matter, he strives for perfection. Xia Zhi is deeply immersed in his love and believes she will grow old with him. Until one day, she sees the woman standing behind him, the woman that bewitches him, and she realizes that everything has been an illusion. She hands him the divorce agreement: “Let's part ways and wish each other well.” He embraces her and says, “Wife, you've stolen my heart; how can I be well?”

A 34-year-old NEET otaku, chased out from his house by his family, found that his life is reaching a dead end. He then recalled that his life could actually have been much better if he had made better choices in the past.

Just when he was at the point of regret, he saw a truck moving at fast speed, and three high schoolers in its path. Mustering all the strength he had, he tried to save them and ended getting run over by the truck, quickly ending his life.

The next time he opened his eyes, he is reincarnated to a world of sword and magic as Rudeus Greyrat. Born to a new world, a new life, Rudeus decided that, “This time, I’ll really live my life to the fullest with no regret!” Thus starts the journey of a man yearning to restart his life.

Chu Sihan, the county magistrate of Xuan Yue Country, is an exceptionally handsome prodigy who had risen to fame since he was a child. However, the National Preceptor prophesies that he would not live to the age of thirty, unless he marries the Lu Family’s daughter from Liu Yue Village.