HIRAETH -THE END OF THE JOURNEY-

After the death of her best friend, Mika is determined to follow her into the grave. But her suicide attempt introduces her to a world unlike any she's ever seen...full of gods and spirits and entities of which she could never have dreamed. But even with this world of wonder, can she find a way out of her sorrow? (Source: Kodansha USA) — Description from AniList community (anilist.co).