Ryoko-san's Problem Formation (Lewd)
(SC34) [Kaikinissyoku (Ayano Naoto)] Villeta-San Ni Moeru Hon (Code Geass: Lelouch of the Rebellion)
(C93) [Renainou (Mizuyuki)] Mondaiji no Shitsuke | Discipline for a Problem Child [English] [Team Koinaka]
[Sanagi Torajirou] fake (Netorare Kataomoi) [English] [Tremalkinger]
Maiden Problems
Shinjin Yuna to Wakeari no Okyaku-san | The New Bathhouse Prostitute And A Problematic Customer
Probed Genji (Shikniful)
(ONE→HUNDRED 2) [0207 (Shizuyoshi.)] INSERT PROBLEM (One-Punch Man)
Hitozuma no Tsubo~Seikan Massaji de Ikikuruu Hitozumu Dachi~
Ippatsu Kaiketsu Onayami Soudan | Ultimate Solution Problem Consultation
Cloud Meadow Art Samples
(C86) [Shinjuku Koma Gekijou (Komagata)] Holdup problem THE Final (Witch Craft Works)
(C66) [Juicy Fruits (Satomi Hidefumi)] Taiyou no Kiss (CLANNAD)
[Fuyuno Mikan] Kyodaika Shita Imouto ni wa Sakaraenai [Chinese] [沒有漢化]
[Lithium] 100-nichigo ni Aiken to Sex suru Jimi Kyonyuu Megane-chan (Day 1-15) [English] [Milky_y]
5% no Kakuritsu de Nenryou More o Okosu Shigure - Shigure leak fuel with 5% probability
(C78) [Asterism (Shiyu)] HEAVEN's SWEET POTION (Working!!)
[Studio Daiya (Nemui Neru)] Any girl can do it! Bitch Zukan-I could have a harem if I solved various problems of Saseko~
Kissing Number Problem
(COMIC1☆4) [Stapspats (Hisui)] Double Battle de Daijoubu!! Kamo... | Double Battles Are No Problem! Probably... (Pokémon) [English] {doujin-moe.us}
Anoko wa Mondaiji 2 - That child is a Problem child.second