Cross Heart (Planeta Manga)

Haru, a teenager brimming with energy and determination, falls head over heels for Kotomi, who always seems to be shrouded in sadness. What secrets does Kotomi's past hold? Fortunately, Haru gradually fills her life with joy, and Kotomi finally experiences happiness again. Will Kotomi be able to confess her deepest secret to Haru and free herself from the pain that plagues her heart?