MTL - After the Divorce, I Was Entangled By the Sick and Charming Fifth Master - Chapter 21 you picky eaters

In an alternate timeline of Warhammer 30k, the Emperor of Mankind discovers the Independence Cluster, a group of technologically advanced worlds that have preserved Dark Age of Technology knowledge. Here, He encounters His first found Primarch, Franklin Valorian, known as the Symbol of Liberty.The charismatic and humorous Valorian, standing 15 feet tall, meets the Emperor with a mix of curiosity and irreverence. Unlike others, Valorian sees the Emperor as a powerful but regular man with a greater purpose, akin to a superhero.

Transmigrating into a poor and mistreated young lady's body, what will the craziest alchemist of the seven realms now do?

Once upon a time, there was a beauty who met nonstop misfortune. This unfortunate man hurried to hug a golden thigh…

Coming from the end of days, the ‘excluding eating there’s only eating in his brain’ Little Useless Eater transmigrated to a ghost story world where it’s difficult to preserve his life. Good that, not only does his IQ explode the meter, all attribute points are also entirely placed on his face, letting him rely on his otherworldly beauty to find a thick and sturdy big golden thigh. Hugging from world to world, finally, from a pitiful thing being oppressed by demons and monsters on every path, he evolved into a vexatious ghost!

- Description from Novelupdates

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.