SIDE COUPLE APPRECIATION - BL SPINOFFS

1. Masa x Ayumu
original: http://www.mangago.me/read-manga/night_milk_heads/
sequel: Night Milk Assort (Untranslated)

2. Yamato x Kawase (both are Masa and Ayumu's ex-coworkers)
spinoff: Night Milk Heaven

1. Shima x Ryuunosuke
original: http://www.mangago.me/read-manga/nirameba_koi/

2. Toranosuke (Ryuunosuke's older brother) x Tetsuya
spinoff: Shinobeba Koi
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The cat that Shima thinks is cute has it's own manga too
spinoff:http://www.mangago.me/read-manga/ore_wa_busamen_neko_tsudzuri/

1. Yamato x Hinata (friends of first couple)
original: http://www.mangago.me/read-manga/kowairo_ni_somaru/

2. Toyo x Haruto (Yamato and Hinata's friends) - ch 1-3;6

3. Kazuma (Toyo's acquaintance) x Miki - ch 3-5

1. Naoto x Toudou
original: Renai Nante Yurushimasen!
sequel:http://www.mangago.me/read-manga/netsuai_nante_ariemasen/

2. Hakuto (Naoto's younger brother) x Suzuki
spinoff: http://www.mangago.me/read-manga/renai_nante_itashimasen/

1. Udou x Miki
original: Gosan no Heart Ch 1-3

2. Takayuki (Udou's brother) x Takeuchi
spinoff: http://www.mangago.me/read-manga/owaranai_fukou_ni_tsuite_no_hanashi/

side stories with both couples:
http://www.mangago.me/read-manga/gosan_de_fukou_na_gojitsudan/

1. Shiina x Yamabuchi - ch 1-3

2. Hayato x Yuri - ch 4-5

1. Mito (Minato's older brother) x Shouhei (Shizuma's younger brother)
original: http://www.mangago.me/read-manga/xxx_allergy/
sequel:http://www.mangago.me/read-manga/secret_xxx/

2. Shizuma (Shouhei's older brother) x Minato (Mito's younger brother)
spinoff: Therapy Game
sequel:http://www.mangago.me/read-manga/therapy_game_restart/

all the works from this author are interwoven couple stories and I'm here for it

1. Takamiya x Izumi - vol 1

2. Reiji (Takamiya's friend) x Naoya - vol 2

3. Iketani x Izumi (Reiji's employee) - vol 3

there's more couples i just forgot after vol 3 - I'll edit them once I reread this one day

sequel: https://www.mangago.me/read-manga/lover_s_mode/
side story: https://www.mangago.me/read-manga/love_mode_unlimited/

1. Usami x Shiro
original: http://www.mangago.me/read-manga/ookami_kun_wa_kowakunai/
sequel: http://www.mangago.me/read-manga/ookami_kun_wa_hanasanai/

2. Shishida x Toshimasa (Usami x Shiro's classmates)
spinoff: Throughbred wa nabikanai
sequel: http://www.mangago.me/read-manga/thoroughbred_wa_yuruganai/

1.Togawa x Shima
original: Doushitemo Furetakunai

2. Onoda (Shima's coworker/had a crush on him) x Deguchi
spinoff: http://www.mangago.me/read-manga/soredemo_yasashii_koi_o_suru/