From Fate:
Kaho puts on a facade in front of everyone, hiding who she truly is, in other words lying to those she cares about in order to make them feel at ease. One day she meets a boy at a social gathering who sees right through her and helps her change...

Consists of 4 one-shots.
4. Yakusoku ga Kimi wo Yaburu
Aina and Tooru are childhood friends who made a promise to always be siblings. As the years past, Aina’s feeling for Tooru turned to love but Tooru became cold and distant. Will either of them be able to keep their promise?
(Source: MU)