If you're looking for manga similar to Amaetekuru Toshiue Kyoukan ni Yashinatte Morau no wa Yarisugi desuka? (Light Novel), you might like these titles.
I am a proud loner who extols the perks of living alone. But one day, an unfamiliar girl, Akari barges into my house. She was here as a “rental family” and even transferred to my highschool, spelling the start of our secretive cohabitation, but. “Eh? It’s not like I’ve done anything, okay?” Despite putting on the airs of an honor student in school, at home, she trespassed into the shower when I was bathing in nothing but a towel, and is also the owner of unspeakable hobbies. To make things worse, our situation was exposed to my classmates, causing my ideal loner life to gradually crumble into pieces. Just let me off already, seriously… What is going to happen to my life?
Share house “Stray Cats”. Here is where girls who have run away from home gather, unlearned in cleaning, cooking or washing clothes! “You wouldn’t get turned on from touching my underwear… would you…?” Yuuto takes over as the manager of the share house to the wariness of the girls. There, he has to fight against the allurement of the girls as he tries to educate them into living decently. As he feeds and clean up after them, getting closer to them in the process, the girls slowly warm up to him. Until one day, when the adults came to bring back the runaway girls—. “People like you—have no rights to call yourselves parents!”
On the day before I entered middle school, I, Nonomiya Kuuya was brought to a new 1-room apartment by my father. There, I met an unbelievably cute girl of the same age as me, Chitose Mea— “You two are new-weds from today onwards! You will live together here from now!” She was to be my fiancée and we are supposed to live together under one roof from now, you say!? I was stun dazed by the out-of-the-blue development, but Mea seemed to have perfectly accepted it as she spoke bashfully, “I will be Kuuya’s… w-wife from now on, so… please do…”! The way she’s so bashful about it is cuteness overload! I want to see more and more of her cuteness! That was how the new-wed lifestyle (?) of us middle-schoolers began—