A couple who is about to graduate from college is about to break up as they get a job and start living different lives and meeting new people. They've been together for 4 years... but life really isn't that easy.

Hyun-Ho joins a study group to get closer to the pretty senior that he has crush on. But this study group is out of the ordinary...! A SPECIAL lesson for him begins! "Here, Hyun-Ho. Grab my butt like this!"

Seonjae succeeds in getting into the same college as his lifelong crush, Hoyeon, and the two start living together. However, everything is ruined on day one when Seonjae’s other housemate, Woojin, finds out about Seonjae's crush on Hoyeon…

Sometimes it sucks going back home. Annoying childhood friends, old people who won't shut up about raising you. But on the other hand, you also get to meet the girls who are now all grown-up!

“I'm actually a masochist.” One spring day in April, Hyun falls in love at first sight with Sungmin and starts a relationship with him. As they plan to happily spend their first time together, Sungmin drops a truth bomb and Hyun begins to contemplate. Safe vanilla sex, packing homemade lunchboxes, and falling asleep over the phone are the things that Hyun dreamed of, so it came to him as quite a shock. On the other hand, Sungmin may be a masochist with big dreams but is a fledgling that lacks experience. “My lover is a sexual deviant I've only known from pornos!” vs “I'm a masochist that also feels pleasure from being submissive.” = “Wait up, baby! I'll become a S&M master for you!” What hardships must Hyun, an Lv. 1 Vanilla, endure to help fulfill Sungmin's dreams and become an Lv. 99 SM King?!

An ordinary college student JIN-WOO finds out that he can use a mysterious retro phone to pay for things with sexual acts, and they get naughtier as the transaction amount increases... How far will he be able to go with this amazing payment system? "Sir, please put it in to make your payment."

SUNG-BIN finds a room near campus, but he has to share it with a mysterious roommate. He's about to say hello... and finds a girl lying there! "She looks just so pretty...!" His boring life is about to change!

TAE-JUN finds it difficult to talk to girls because he has only ever been at an all-boys school. He tried playing dating sims, but it didn't help much. One day, he starts seeing dating sim choices in real life... [Ding! Heroine's friendship level has increased! You can now have sex with her!]

“I want you♥for my birthday gift.” On his 20th birthday, Joosuh Yoo declares he wants his long-time neighbor Hyunwoo Kang's body. Hyunwoo expresses that Joosuh's too young for him, but the passionate and headstrong Joosuh persists and Hyunwoo gives in for one night. After their night together, Hyunwoo continues to treat Joosuh like a child. Joosuh enrolls in college and is thrown into a new life. Hyunwoo is shocked after witnessing that Joosuh, despite being the kind kid Hyunwoo has ever known, is a total social pariah. When Hyunwoo asks why Joosuh isn't friendly to others, Joosuh remains steadfast. “You're all I need.” Hyunwoo has known the kid next door for a long time but contemplates how to take Joosuh's obstinate character to cling to one single person. Will Joosuh be able to win over Hyunwoo's heart?

I died a lonely virgin after being used by women all my life. But guess what? The God of Losers, the protector of virgins like myself, gave me another shot! Will I make it through this survival game where the only way to live is by hooking up with female friends?

When SUNG-KI KIM, a physical therapy major freshman, touches women's bodies with the manual therapy he learned from his grandfather, all women fall for his touch and crave more. Then, on the first day of the orientation, his hands touch an egoistic Professor YUNG-HEE HAN, which becomes the first step to creating his harem.

This world is all about the looks, and the winner takes it all. He's always been rejected by the women, but now he is out for revenge with his new appearance. "No woman can resist me now!"

"I can dominate whoever I want?" JU-WON is a grad school student who everyone in the lab looks down on. But when he and YE-RIM hears a certain sound wave that's been turned on without his knowing... "I'm sorry... Please forgive me!" After that day, JU-WON starts taming the arrogant bitches.

Hwan returns to college after his military service, and runs into a mess involving his first love, his ex and even a freshman. His life is a total chaos between the girls who are out to get him!

"I thought you were here to look at the room, so what are you staring at?" Living in a share house full of girls. The rent went down, but something else is going up!

Choose one? Why not both? An average guy gets into a secret relationship with two college girls who are so very different.

A guy ends up posting an ad to sell a 'special' gift he bought for his girlfriend on the college online board. What is worse is that someone actually messaged him, wanting to buy it! And it was a really pretty girl too! "Are you... going to use that?"

"I'm sorry... I really like you... but it's different from love." A loser who had no talent in magic... was born again as a tall, handsome, and powerful wizard! Upon entering the elite class in the Imperial Academy, he finds himself in the same class as his ex-girlfriend and his childhood friend who dumped him.

I was enjoying an ordinary life in college when a girl claiming to be a succubus showed up. However, now she's telling me that I've taken her abilities, and have to get energy from the girls for her! "Your scent is making me go crazy~"

Three friends had an agreement. They'd all have fun together but just stay as friends. But when they meet again, they realize that they still have feelings for each other.

"I like a man who desires my body... then just a nice guy." KWANG-MIN, a kind-hearted ideal student who loves comics, faces rejection for lacking men's appeal. Determined to transform himself, he emulates his favorite comic's protagonist—a blonde and tanned gangster. Surprisingly, this change leads to newfound power over women's desires and submission to his charm.

NAM-JU ends up getting hard in front of his seniors who are notorious for being strict on freshmen. He thought that his college life was ruined, but he didn't realize that the girls were actually impressed...

Popular college student, Seungjae Lee's got it all when it comes to wealth, connections, and physique, but every time he spends a night with a girlfriend, he immediately gets dumped. After one of these breakups, Seungjae spends the night drinking and on his way home runs into and catches up with Eusung Kim, a friend from high school. Seungjae drunk-confesses all of his problems and Eusung convinces him to re-enact everything that he tried with his previous girlfriends, causing the two to end up having sex. The next day, Seungjae realizes he did something crazy yet asks how last night was. Eusung replies, “I don't know, maybe I'll know if you show me one more time,” tempting Jaeyoon again. Can Jaeyoon stay friends like old times while still having sex with Eusung? But unexpectedly, Eusung has a secret to reveal, but it's become a shade...?

Heewoon Kim dreams of a hot and steamy night with his childhood friend and his long-time crush, Sunwoo Ahn, but lacks the courage to speak up and so devotes his time to writing erotica instead. Coming from a wealthy family, Heewoon also has grand aspirations to sell his work off to Hollywood someday and he'll confess his love when that happens! When one day, Heewoon witnesses Sunwoo, too busy to hang out, walking down the street with an unfamiliar girl and realizes his first crush is coming to an end. Heewoon falls asleep crying but wakes up in a dream world. And somehow he keeps ending up with Sunwoo...? My erotica is becoming reality! Who knows?! I'll enjoy it!

The ever-loyal Juwon Lee gets a job as an undergrad intern, leaving Chanhee Cho behind for him to attend college classes alone. One day, Jaeyoon Suh, a classmate of Juwon, coincidentally witnesses the popular Juwon clinging to Chanhee. As the professor assigns another team assignment, Jaeyoon decides to partner up with Chanhee on a whim. The outsider Chanhee ends up teaming up thanks to the insider Jaeyoon's resourcefulness. And as they slowly get closer, Jaeyoon discovers Chanhee's cute charms. “Jaeyoon Suh” Chanhee ponders over the name once more... Jaeyoon's a threat to the Juwon-Chanhee couple! Will the love relations between them remain unharmed?