Sekai wa Happy de Dekiteiru

Sekai wa Happy de Dekiteiru summary:

From Terrad: Kanae, who's just been through terrible heartbreak, decides to take a vacation to the mountains, hoping to take her mind off of things. Her skiing instructor turns out to be more of a comfort to Kanae then anything, and she finds herself slowly opening up to him. Unfortunately, before long, it's time to say goodbye... But this isn't even close to the end of their story!