This was nice. I loved how moody the shading and backgrounds were, and the way they just evaporated when our two leads hugged each other. Really nice use of environmental storytelling to express states of mind. I like how the story ties together Natsuka's feelings for Mayu with her depression, but doesn't just default to the manic pixie dream girl trope or to the tragic lesbian one. There's a comfortable sense of ambiguity throughout, and it's great how this author conveys supportiveness as a flexible, attentive attitude rather than a five-page, hyper-rational argument about why Life is Precious and Suicide is Bad, which so many stories fall into. All in all, a fairly feel-good story that never gets too preachy or overstays its welcome.