Umisaki Lilac(2015)

Umisaki Lilac

Even though he’s such a good-for-nothing… Why is my heart racing like this!?
Hazuki Umi is a caring middle school student, beloved by everyone who lives on the island. In contrast, Inoue Fuuta has done nothing but be lazy at home ever since he moved to the island to open up a guesthouse. An overwhelming age difference of 15 years lies between them. He has no delicacy, he isn’t reliable at all… And yet, his words always manage to make her heart race, her face flush---
The age-gap romance between a pure middle school girl and a boring 30-year old man begins now!