First Volume: Emori Kunihiko gets depressed when his girlfriend breaks up with him. Then a random st...
i just love this manga so much because the pace is great, their relationship wasn't forced and the author really put some work in building these characters and their relationship. i don't advise you to read chapter 7-8 (volume 1). it's a side story and it's not my cup of tea, but it's your choice.