Hatsukoi Fuzen Moratorium

Ise is on a mission to find the doll that he lost when he was younger. Then he meets Saku. Meeting him something stirs within Ise. Ise doesn't have any interest in humans, but Saku looks just like that doll. He didn't want a replacement for her, but now he's experiencing strange feelings towards Saku. On top of that, they quickly start living together...?!

(Source: Kadokawa, translated)