Inui's Holidays

This is another Inui Sadaharu fic, originally it was a reader insert one-shot I wrote for a friend, but I fallen in love with the pairing so...now this is a multi-chapter fic based in Shimizu Rei (ex reader insert) and Inui Sadaharu, and how they spend holidays together.

Shy!Oc×Sweet!Haru give it a try.

PS: I'm focusing on the Japanese Holidays only, and since I am not Japanese some details might be wrong, even with the research I did.