SO, you’ve already read overflow, watched the Secret Mission anime and are caught up on all the latest episodes of Harem Camp. What to read next? Well, we at Coolmic are connoisseurs of mature manga, and through our travels we have summed up a list of 10 underrated Mature manga that you may not have read yet. And believe .
Here’s our curated list of some of the most underrated adult manga—so dive in to the pages of the manga below, you won’t regret it! *Warning, very spicy!
1. Ren Arisugawa Is Actually a Girl
By Norito Asazuki | Status: Completed
A charming celebrity with a big secret—Ren Arisugawa is actually a girl! With her career on the line and a nosy co-star closing in, this office drama is packed with crossdressing chaos, unexpected romance, and plenty of juicy tension.
Why read? Bold, fun, and filled with workplace power plays.
2. I Did Naughty Things… With My (Drunk) Sister
By Aya Kouno | Status: In Preparation for Update
An emotional, forbidden story that blurs the lines between memory and mistake. This title dives deep into complicated relationships, tsundere attitudes, and that one night that changes everything.
Why read? For fans of taboo drama with an emotional twist.
3. Committee Chairman, Didn’t You Just…?!
By Namita | Status: Completed
A high school comedy like no other—our protagonist develops an unusual “ability” and uses it to uncover the secrets his crush is hiding. What follows is a wild ride of harem mayhem and unexpected intimacy.
Why read? A perfect mix of school antics and steamy surprises.
4. That Won’t Fit…! All-Night Passion With the Most Well-Endowed Guy
By Daiki Fuun | Status: Completed
Let’s just say, this tsundere heroine’s life gets turned upside down when she discovers her roommate is… extraordinarily equipped. Cute, spicy, and outrageous in all the best ways.
Why read? For fans of size difference dynamics and tsundere chemistry.
5. Bullied Boy’s Tongue Revenge
By Non Takayama | Status: In Preparation for Update
What happens when the class outcast gets his glow-up—and uses it to turn the tables? This revenge-fueled school romance is full of passion, tension, and just the right amount of payback.
Why read? Come for the underdog story, stay for the steamy revenge arc.
6. Only I Know Her Blushing Side
By Fujiko Momoshika | Status: Ongoing
A sports romance where betrayal meets redemption. As secrets unfold and trust is tested, our heroine finds herself torn between love, lust, and lingering feelings.
Why read? Great for fans of love triangles and emotional highs.
7. Sex in a Sauna With a No-Makeup Gyaru
By Nyakotarou | Status: Completed
She’s bold, brash, and doesn’t care what anyone thinks… until one steamy sauna session changes everything. A school life story with heat, heart, and hilarious misunderstandings.
Why read? For readers who love gyaru girls and steamy settings.
8. [Uncensored] The Dick Pub
By Hiroyoshi Kira | Status: Completed
Set in a surreal bar that caters to very unique needs, this title is a playful, over-the-top fantasy. Equal parts absurd and addictive.
Why read? Because you’ve never read anything like it before.
9. P-Connect App
By Shimoya | Status: Completed
A mysterious app changes our protagonist’s life—literally. Dive into this wild, imaginative fantasy where digital meets desire in unexpected ways.
Why read? For those who like their romance with a side of sci-fi spice.
10. Can’t Believe My Loner Childhood Friend Became This Sexy Girl
By syosonn | Status: Completed
A glow-up like no other—his former shut-in bestie is now the school’s top bombshell. And she’s ready to make her move.
Why read? Childhood friends + transformation = 🔥
There you have it, 10 underrated adult manga that you might not have read yet! If you would like to read more articles about adult manga, check out the articles below^^
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