섹.연.필!

After his parents remarry, Na-Rim finds himself harboring a forbidden crush on his new stepbrother, Se-Wun. One day, he overhears Se-Wun’s “ideal type” is someone who knows their way around the bedroom - which causes Na-Rim, who doesn’t even have any experience with love or relationships, to panic. Hoping he can teach himself, he impulsively buys a box of sex toys. But when his friend Tae-Hyeon discovers them during a visit, he’s baffled by Na-Rim’s plan…only to make an outrageous offer instead: “Why not practice with me?” Does practice really make perfect, or is Na-Rim’s hope for some action a lost cause? (Source: Lezhin US) Note: Includes 14 extra chapters.