Soredemo Kimi wo Shiawase ni Shitai

Kouya is reunited with Aihime, a girl he used to play with when they were little, for the first time in nine years.
Even though they've lived far apart, Kouya's feelings for her have been growing through their social media exchanges, and he decided to take the opportunity of their reunion to reveal his feelings to her!
But she has a secret...?
(Source: Manga Cross, translated)
Note: Includes 4 extra chapters.