https://www.mangago.me/read-manga/oniisama_e/
https://www.mangago.me/read-manga/huijin_huayuan/
https://www.mangago.me/read-manga/a_story_concerning_sweets/
https://www.mangago.me/read-manga/yume_no_hashibashi/
https://www.mangago.me/read-manga/tower_of_campanella/
https://www.mangago.me/read-manga/brides_of_iberis/
https://www.mangago.me/read-manga/composing_spring_in_this_room_where_cherry_blossoms_bloom/
https://www.mangago.me/read-manga/living_will/
https://www.mangago.me/read-manga/seasons_in_bloom/
https://www.mangago.me/read-manga/can_t_forget/
https://www.mangago.me/read-manga/kimi_to_tsuzuru_utakata/
https://www.mangago.me/read-manga/have_a_great_trip_after_the_credits_roll/
https://www.mangago.me/read-manga/gunjou/
https://www.mangago.me/read-manga/kitanai_kimi_ga_ichiban_kawaii/ (toxic relationship, features some extreme fetishes such as age regression/babyplay, vomit kink, period blood kink, etc.)
https://www.mangago.me/read-manga/final_film/ (short story)
https://www.mangago.me/read-manga/avalon_bitter_anthology/ (one-shot anthology)
https://www.mangago.me/read-manga/shiroi_heya_no_futari/ (one-shot)
https://www.mangago.me/read-manga/141108/ (one-shot)
https://www.mangago.me/read-manga/the_story_of_the_princess_and_the_little_mermaid/ (one-shot)
https://www.mangago.me/read-manga/a_bud_in_secret/ (one-shot)
https://www.mangago.me/read-manga/saudade_ni_kuchidzukete/ (one-shot)
Please give me some devastating, gut retching, heart breaking, soul shattering depressing yuri with a horrible sad ending, i hate happiness. Doom is life. Pwease.