I’ll Become a Villainess That Will Go Down in History - Chapter 325

A man was transported to Ancient China and eventually became a servant of a declining household without a male heir. He utilized his wits and modern knowledge to help the household and eventually become trapped in the sea of political turmoils of the period.

- Description from Novelupdates

'My life is boring.'Cole thought when he was 14 years old.He thinks that there's nothing special about him or his life.And he thought that the only reason he was alive is because he was not dead yet.But then, at the age of 16, Cole developed a hobby.And that's reading novels.When he's reading, he feels emotions he normally wouldn't feel!Cole feels like he's been brought into a different world!And reading novels made him forget about the boredom he's feeling!So he really enjoyed and liked novels!To the point that he even started making one!Yes, Cole became a novel author and his works were seen and read by many people around the world!And seeing people talking about his work and supporting him made Cole enjoy writing too!But after reading and writing novels again and again... for a long time.Cole started to feel less excitement and thrill in doing them...Nevertheless, he didn't stop.Cole feels like he would be bored to death if he stop, so he just continued.Ting-!“Huh?”Then one day, while Cole was reading through the comments of his novel.He received a mail...The sender was anonymous and the content of it didn't make sense to him.“My work had been chosen...?”“They will grant my wish?”“What kind of bullshit is this?”So Cole didn't pay attention to the mail....“Eh?”Though, he suddenly woke up in a different body and a different world!Cole was sent inside his novel!And he became Raven Obadiah...?Who's that?The protagonist? No.The villain? No.One of the major characters? No.I don't know who the fuck Raven is too!Cole doesn't know him too!In short, he's just a fucking extra with no importance in the novel!But there's something weird about Raven's life that Cole doesn't know...And Cole, receiving a chance to have a life he could only dream of in the past...“Hiding strength?”“Staying an extra?”“Letting the main characters handle everything?”“Those sounds boring as fuck!”Cole, or should I say, Raven—decided to live a life full of excitement!He will do whatever he wants, and he wouldn't let anyone stop him!

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.

The MC entered the body of the An family eldest son, An Ziran, an arrogant 16 years old boy who weighed 78 kg (~171-172 lbs), who only knew how to eat, play and sleep. Seeing his current body, An Ziran decided his first priority was to LOSE WEIGHT!