Story search

http://www.mangago.zone/read-manga/takaramono_wa_hako_no_naka/ (they switch later on in the doujinshi)
http://www.mangago.zone/read-manga/yarichin_bitch_bu_dj_wa/

http://www.mangago.zone/read-manga/koi_to_wa_baka_de_aru_koto_da/bt/282016/Vol1_Ch0/1/ (main story)
http://www.mangago.zone/read-manga/koi_to_wa_baka_de_aru_koto_da_dj_reversible/ (continuation where they switch)

http://www.mangago.zone/read-manga/haikyu_dj_fukenzen_hakusho/

http://www.mangago.zone/read-manga/mou_ichido_nando_demo/
http://www.mangago.zone/read-manga/doutei_doudeshou/
http://www.mangago.zone/read-manga/doutei_doudeshou_dj_another/ (they switch here)
http://www.mangago.zone/read-manga/the_man_of_tango/
http://www.mangago.zone/read-manga/abnormal/
http://www.mangago.zone/read-manga/itoshi_no_nekokke/
http://www.mangago.zone/read-manga/kozure_ookami_inoue_satou/ 71-151
http://www.mangago.zone/read-manga/three_wolves_mountain/
http://www.mangago.zone/read-manga/mazu_wa_ubaiai/
http://www.mangago.zone/read-manga/shinjuku_lucky_hole/

P1(Yumi/Hayashida) - http://www.mangago.zone/read-manga/azami/
P2(Yumi/Hayashida - Yumi/Mayama) - http://www.mangago.zone/read-manga/sabita_yoru_demo_koi_wa_sasayaku/
P3(Hayashida/Shuuna)(Ch. 3-6) - http://www.mangago.zone/read-manga/renai_rubi_no_tadashii_furikata/
P4(Hayashida/Shuuna) - http://www.mangago.zone/read-manga/hadakeru_kaibutsu/
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P1 - http://www.mangago.zone/read-manga/kyuuso_ha_cheese_no_yume_omiru/
P2 - http://www.mangago.zone/read-manga/sojou_no_koi_wa_nido_haneru/ )

i have SeKe/SemeXSeme list http://www.mangago.zone/home/mangalist/83371/ (〜￣△￣)〜