I get worn out from work everyday, so I had a private daily routine to deal with it. That is to say, I go to see this girl who's part-timing at a convenience store in the neighborhood!

I was getting healed by casual conversations with this cute girl working as a store clerk, who I had always thought would never notice the likes of an unremarkable office worker like me.
One rainy day, I went to drop by at the convenience store like usual... but she was not there; That left me with no choice but to go home, so I headed off and that's when I saw her: just outside, waiting for me while soaking wet in the rain?!

She said she lost her house key, so in the meantime I brought her to my house...

(Source: DMM)

[Note: This has 2 near-identical versions, one is a heavily censored softcore version and the hardcore version marked R-18 has mosaics. The covers are slightly different, but the story is the same.]