Top 10 Adult Manga/ Manhwa Similar to Lightning Rod [Best 18+ Recommendations]

Most Recommended 18+ Mature Webtoons like Lightning Rod:

1. Prison School

Author and Artist: Hiramoto Akira, Hiramoto Akira
Chapters: 277 (Completed)

Synopsis:

Hachimitsu Academy, known for its strict academic standards and even stricter school code, is making a giant change this year. For the first time in school history, they are allowing boys to be admitted. As Fujino Kiyoshi starts his first day at Hachimitsu Academy he is shocked to find out that there are only 4 other guys in the entire school, making the ratio of girls to boys 200:1. And to their dismay, not one of the thousand girls will talk to them or even acknowledge them. But Kiyoshi and the guys are about to find out about the shadow student council that has been threatening the female students about interacting with male students.

BONUS: it also has an amazing anime adaptation. Go check it out!

2. Stepmother’s Friends

Author and Artist: Mokbegae, Red-A
Chapters: 110+ (Ongoing)

Synopsis:

I lost my mother when I was young, she left me and my dad to live together with each other. Dad wanted to ease my pain, he let me live a life without worry. Then suddenly one day, my father introduced me to a young and beautiful woman he married because she coveted the man’s property.

Seeing her sincerely loving my father, I began to open my heart to her gradually, however. Seowoo is a boy who has never had intimate relationships, but he did not know that from a video he saw on the internet. He discovers the secret of his young stepmother and his friends, this will make them more involved with him, his stepmother and her friends.

3. A Wonderful New World

Author and Artist: Yoon Gon-Ji, Hard Work
Chapters: 140+ (Ongoing)

Synopsis:

Ho-Seung, an unpopular office worker who works for one of the largest corporations in Korea, is crouched over like a sinner because he was accused of setting up a camera in the women’s bathroom. In the end, however, he was proven to be innocent. Then one day, he was suddenly notified of his reassignment by the team manager. It seemed that she was victorious, until…

4. Don’t be like that Son-in-law

Don't be like that Son-in-law adult manga — Don’t be like that Son-in-law adult manga

Author and Artist: Gyulpi, Kkamja
Chapters: 67 (Completed)

Synopsis:

Yoo Aeran and Kim Jihoon started as a mother-in-law and son-in-law relationship. Despite the age of Aeran’s mid-40s, he is constantly drawn to her, who is very attractive, and their breathtaking cohabitation begins!

5. The Runaway Family

Author and Artist: Serious
Chapters: 75 (Completed)

Synopsis:

“I’m looking for a family…” Eun-Yul lives alone in a huge mansion since his father ‘abandoned’ him after getting remarried to a younger woman. Eun-Yul, wishing to experience what it felt like to have a real family, invited a group of people with their own stories and problems to live with him and form a harmonious family. What Eun-Yul didn’t expect was the temptation he would feel for his new ‘sisters’. An uncontrollable desire, a longing for something he can’t have! A mysterious cohabitation begins.

6. The Perfect Roommates

Author and Artist: Andromeda11
Chapters: 70 (Completed)

Synopsis:

Those girls aren’t family! They’re gold diggers! I’m not going to let them mess with me.

The story follows our main character Jay who is a 21-year college year whose life is about to turn upside down when his father suddenly announces he is re-marrying and now he has two new step-sisters who barges into his house. But his friend suggests they are after his father’s wealth. So what is the truth behind this.

7. Study Dates

Author and Artist: Zapplin, DS
Chapters: 50

Synopsis:

Jung-Woo goes to this particular study room for one reason: Because of the hot manager who runs it! But soon he finds himself surrounded by girls and that is just the beginning of his harem.

8. Secret Class

Author and Artist: Gang-cheol Wang, Minachan
Chapters: 120+ (Ongoing)

Synopsis:

Dae Ho, who became an orphan at the age of 13, was adopted by his father’s friend. However, Dae Ho in adulthood knew nothing about the relationship between men and women. Aunt and sisters decided to give pure Dae Ho a secret class.

9. My Landlady Noona

Author and Artist: Congee
Chapters: 50+ (Ongoing)

Synopsis:

The story follows 20-year Min-woo and his interesting relationship with Hari. Hari, who always takes care of Min-woo, a very kind building owner noona, whose apartment he lives in. Min-woo in fact calls Hari “Ajumma” instead of noona, but she ignores him… But when she says she doesn’t see Min-woo as a man his pride is hurt and interesting developments start to spur.

10. A Pervert’s Daily life

A Pervert's Daily life adult manga — A Pervert’s Daily life

Author and Artist: Alice Cr
Chapters: 140+ (Ongoing)

Synopsis:

Let’s just say Jinwoo and Seyoung got off to a rocky start. Not knowing Seyoung would be living in a company dorm with a male employee, her direct superior at that, she barged into his room thinking it was hers. Her timing couldn’t have been more inappropriate as Jinwoo was in the middle of his fun time. Embarrassed and with nowhere to hide, Jinwoo’s life was headed towards misery. However, little did he know Seyoung was no ordinary rookie. She had her own dirty little secret…

Concluding Thoughts!

It seems like we’ve reached the end of the list. With a perfect main protagonist and well-written side characters and a standard plot, manhwa has been an entertaining read for most of us.

Since you’re looking for a similar manhwa, we’ve presented you with this list. We hope you found what you’re looking for, and even with all these titles, there should be one manhwa to your taste.