DASH - Chapter 4Vol 2. : Side Story -

Upon meeting the girl who would become her adopted younger sister, the duke’s daughter Christina regained memories of her previous life. Through those memories, she learned that her new sister, Mishuli, was the heroine of a certain story. And though the story depicted a Christina who abused her sister, the real Christina turned into a siscon who spoiled Mishuli to no end.

After coming out of a tunnel… it was pitch dark.

A young man who wanted nothing but love from others died while talking to a mysterious author of his favourite novel.However, that wasn't the end for him, as he reincarnates in a Xianxia world with a Wish Fulfillment system. He can wish for anything, and it will be fulfilled.Finally, getting a chance to make his dream come true, he decided to make his own Divine Harem Sect where he would have a whole sect to love him.Of course, that also includes other type of love........“Huh!? What do you mean my disciples destroyed your sect? That's impossible! Don't you see how cute and kind they are? They are harmless!”“Hmm? My disciple flattened the Hollow Mountains? Don't joke around. Can't you see her sleeping peacefully in my lap?”“My dear disciples, why are you all lowering your robes? Wait! Why are you taking my clothes off? Well, now I can't do anything about this.”

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.