Imaizumi is a high school boy who lives alone in his apartment for a reason. He has a secret that he can’t tell to anyone. And the secret is that he lives with the three most attractive gals from his school, Hamasaki, Kurumizaka, and Sasaki. He spends his day playing, talking and getting physical with the girls, each with her own quirks. He can get used to this carefree and naughty “youth”…?
(Source: Ganma!, translated)
Imaizumin's House is a Place for Gals to Gather <del>EXTRA</del>
Contains some backstory. MUST READ, if you want to follow the story.

Read the comic Imaizumin Chi wa Douyara Gal no Tamariba ni Natteru Rashii ~OMAKE~ online, along with others like The Beginning After the End, Jujutsu Kaisen, The Greatest Estate Developer, After Ten Millennia in Hell, My Blasted Reincarnated Life, Mercenary Enrollment, Revenge of the Iron-Blooded Sword Hound, The Academy's Genius Swordsman, SSS-Class Revival Hunter, The Return of the Disaster-Class Hero

Comedy

Gyaru