MTL - A War Between Spies - Chapter 1 Start with coincidence

Born different in a family where everyone has black hair and golden eyes, the boy was labeled a cursed child; yet, he didn't let despair swallow him. He would live on and understand the reason why he was different and what made him unique.Follow him as he embark on his journey of self discovery. This is the Chronicles of the Cursed Child, the one who will later be known as the Primordial Heir, the Elemental Lord.

As a man who had lived for 20 something years and had always considered himself as a straight man, he woke up one day and found himself possessed by a stupid and cute system. Moreover, it was a gong-shou cultivating system?! Let’s see how a shou with raised hackles evolves into a (pseudo)queen shou, incidentally with a story of a hidden loyal dog gong.

- Description from Novelupdates

In 2030, humanity faced its first true collapse…not by war, but by the sudden invasion of Nightcrawlers, creatures emerging from darkness itself with the desire to devour sunlight at all cost for their evolution.But, they could not absorb it directly since it was as deadly to them as to a shadow under the noonday sun. They could only absorb the sunlight from lifeforms or through signing a nocturnal contract to possess their bodies, providing them with direct sunlight immunity.Within twelve hours, over four billion people perished as Earth was split between eternal night and day.Just as extinction loomed, Holy Light Pillars descended from the heavens, purging one thousand cities from Nightcrawlers and offering humanity sanctuary under their divine light.A century later, in the Heliodor Region, an innocent child found his world turned upside down after two mysterious nightcrawlers invaded his home, slaughtered his parents, and ripped his eyes out of their sockets, leaving him permanently connected to the Shadow Dimension, the home ground of Nightcrawlers.Was it just a random feeding session for them, a planned assassination, or it goes deeper than this?Follow Levi’s journey as he weaves between darkness and light, chasing the truth hidden in both.

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.