Your search for "Jean Kirstein x Armin Arlert" revealed the following:
Tiger & Bunny Doujinshi - A Knife Above an Apple (Keith Goodman x Kotetsu T. Kaburagi / Keith x Kotetsu)
$ 26.95Product details: Keith Goodman x Kotetsu T. Kaburagi / Keith x KotetsuItem Title: A Knife Above an AppleProduced by: Osushi...
Ace Attorney Phoenix Wright Doujinshi - Turnabout Wild Dance Second (Dick Gumshoe x Franziska von Karma / Gumshoe x Franziska Edgeworth x Shih-na / Edgeworth x Calisto Yew)
$ 33.95Product details: Dick Gumshoe x Franziska von Karma / Gumshoe x Franziska, Edgeworth x Shih-na / Edgeworth x Calisto YewShih-na...
Final Fantasy 15 Doujinshi - Lestallum Hustler (Noctis x Prompto / Noctis Lucis Caelum x Prompto Argentum Mob x Prompto / Mob x Prompto Argentum)
$ 30.95Product details: Noctis x Prompto / Noctis Lucis Caelum x Prompto Argentum, Mob x Prompto / Mob x Prompto ArgentumWill...
Blue Exorcist Doujinshi - Me x Me Paradise: Play for Just the Two of Us (Amaimon x Amaimon)
$ 26.95Product details: Amaimon x AmaimonAmaimon x Amaimon is hot stuff~Item Title: Me x Me Paradise: Play for Just the Two...
Kuroko's Basketball YAOI Doujinshi - Love Distance Code: The Last Part (Aomine x Kise)
$ 33.95Product details: Aomine x KiseThis is the last part of a sexy parody of the movie Mr. and Mrs. Smith!...
YuGiOh! 5D's Doujinshi - Can You Celebrate! (Jack Atlas x Kalin Kessler / Jack Atlas x Kyosuke Kiryu / Jack x Kalin)
$ 53.95Product details: Jack Atlas x Kalin Kessler / Jack Atlas x Kyosuke Kiryu / Jack x KalinJack and Kalin get...
Attack on Titan LOVE Doujinshi - Drop Chocolat (Levi x Hange / Levi x Zoe / Levi x Zoe Hange / Levi x Hans)
$ 30.95Product details: Levi x Hange / Levi x Zoe / Levi x Zoe Hange / Levi x HansHange gets drunk...
Persona 5 Doujinshi - We Went on a Getaway (Ren Amamiya x Ann Takamaki / JOKER x Ann / Protagonist x Ann / Hero x Ann)
$ 33.95Product details: Ren Amamiya x Ann Takamaki / JOKER x Ann / Protagonist x Ann / Hero x AnnWhen an...
Yuri!!! on Ice Doujinshi - Sweet Soldier (Otabek Altin x Yuri Plisetsky / Otabek x Yurio / Otabek x Yuri)
$ 26.95Product details: Otabek Altin x Yuri Plisetsky / Otabek x Yurio / Otabek x YuriWill Otabek be taken in by...
Neon Genesis Evangelion Doujinshi - Hazy Vol: 00 (Rei Ayanami Miki Hoshii Nozomi Tojo and Kyoko Kirigiri)
$ 26.95Product details: Rei Ayanami, Miki Hoshii, Nozomi Tojo and Kyoko KirigiriThis steamy doujin bonus book is super sexy!Item Title: Hazy...