Love All Apartment

After saying goodbye to his old life and looking for a new start, Isumi moves into a small, low-priced apartment. But the employee was mistaken when he thought he could now lead a quiet life - because the walls are very thin and every morning a lustful moan from the neighboring apartment comes over to him. When one day he meets his noisy neighbor, the encounter becomes unexpectedly intense...

(Source: Egmont Manga, translated)

Note: Includes 2 extra chapters.