Eren Jaeger's Trolley Problem
Kissing Number Problem
[Soda Batake (Muteki Soda)] Cool-kei Onee-san ni wa Dare ni mo Ienai Nayami ga Aru. | Cool Onee-san has a problem that I can't tell anyone [English] [Yahaarr] [Digital]
Migawari no Patchouli | Patchouli as a Substitute
(COMIC1☆4) [Stapspats (Hisui)] Double Battle de Daijoubu!! Kamo... | Double Battles Are No Problem! Probably... (Pokémon) [English] {doujin-moe.us}
[Yoshiura Kazuya] Little Problem =LWB=
[AQUARIUM, Lunatics (Hinata Karin, Mitsuki Kisara)] Hinamizawa Renai Shoukougun (Higurashi no Naku Koro ni) [Digital]
(SC53) [PURIMOMO (Goyac)] Lovely Substitute (YuruYuri) [English] =TV + Yuri-ism=
(C85) [Parupunte (Fukada Takushi)] F-81 (Gundam Build Fighters)
(C79) [Depthbomb (Shimo)] Substitution (Touhou Project)
人間便器18号
No Problem, it's surprisingly ok!
Chiru Roshutsu 18
Motto Otona o Dame ni Suru Kangoshi Kitano-san | 讓大人更加變得沒用的護理師北野小姐
[Shinjima Saki] Problem [Digital]
(C84) [Shinjuku Koma Gekijou (Komagata)] Holdup Mondai -Holdup problem- (Toaru Kagaku no Railgun) [Chinese] [黑条汉化]
[Ishida Masaharu, Hamada Kinnosuke] Jakkan Mondai? Bimyo-ni OK! | Problem? No, it's surprisingly ok! (Baby, I LOVE YOU.) [English] [desudesu] [Digital]
(C92) [Yumesaki Annai Kairanban (Hiro Hiroki)] Maji Yaba Puni Dra-tengoku 2 (Kobayashi-san-chi no Maid Dragon)